List of Major League Baseball players (Mi–My)
# List of Major League Baseball players (Mi–My)

The following is a list of Major League Baseball players, retired or active.

## List of Major League Baseball players

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z

## Mi-My

| Name | Debut | Final game | Position | Teams |
| - | - | - | - | - |
| Bart Miadich | September 2, 2001 | August 12, 2003 | Pitcher | Anaheim Angels |
| Dan Miceli | September 9, 1993 | September 29, 2006 | Pitcher | Pittsburgh Pirates, Detroit Tigers, San Diego Padres, Florida Marlins, Colorado Rockies, Texas Rangers, Cleveland Indians, New York Yankees, Houston Astros, Tampa Bay Devil Rays |
| Mickey Micelotta | April 20, 1954 | August 2, 1955 | Shortstop | Philadelphia Phillies |
| Gene Michael | July 15, 1966 | September 9, 1975 | Shortstop | Pittsburgh Pirates, Los Angeles Dodgers, New York Yankees, Detroit Tigers |
| Cass Michaels | August 19, 1943 | August 27, 1954 | Second baseman | Chicago White Sox, Washington Senators, St. Louis Browns, Philadelphia Athletics |
| Jason Michaels | April 6, 2001 | | Outfielder | Philadelphia Phillies, Cleveland Indians, Pittsburgh Pirates, Houston Astros |
| John Michaels | April 16, 1932 | September 24, 1932 | Pitcher | Boston Red Sox |
| Ralph Michaels | April 16, 1924 | April 30, 1926 | Third baseman | Chicago Cubs |
| John Michaelson | August 28, 1921 | August 30, 1921 | Pitcher | Chicago White Sox |
| Chris Michalak | August 22, 1998 | September 27, 2006 | Pitcher | Arizona Diamondbacks, Toronto Blue Jays, Texas Rangers, Cincinnati Reds |
| Ed Mickelson | September 18, 1950 | May 12, 1957 | First baseman | St. Louis Cardinals, St. Louis Browns, Chicago Cubs |
| Glenn Mickens | July 19, 1953 | July 30, 1953 | Pitcher | Brooklyn Dodgers |
| Kam Mickolio | August 20, 2008 | | Pitcher | Baltimore Orioles, Arizona Diamondbacks |
| Jason Middlebrook | September 17, 2001 | May 15, 2003 | Pitcher | San Diego Padres, New York Mets |
| Jim Middleton | April 18, 1917 | September 18, 1921 | Pitcher | New York Giants, Detroit Tigers |
| John Middleton | September 6, 1922 | September 21, 1922 | Pitcher | Cleveland Indians |
| Dick Midkiff | April 24, 1938 | September 13, 1938 | Pitcher | Boston Red Sox |
| Ezra Midkiff | October 5, 1909 | August 6, 1913 | Third baseman | Cincinnati Reds, New York Highlanders/Yankees |
| Gary Mielke | August 19, 1987 | September 30, 1990 | Pitcher | Texas Rangers |
| Doug Mientkiewicz | September 18, 1998 | | First baseman | Minnesota Twins, Boston Red Sox, New York Mets, Kansas City Royals, New York Yankees, Pittsburgh Pirates, Los Angeles Dodgers |
| Ed Mierkowicz | August 31, 1945 | April 19, 1950 | Outfielder | Detroit Tigers, St. Louis Cardinals |
| Matt Mieske | May 3, 1993 | September 30, 2000 | Outfielder | Milwaukee Brewers, Chicago Cubs, Seattle Mariners, Houston Astros, Arizona Diamondbacks |
| Larry Miggins | October 3, 1948 | September 28, 1952 | Outfielder | St. Louis Cardinals |
| John Mihalic | September 18, 1935 | September 12, 1937 | Second baseman | Washington Senators |
| José Mijares | September 13, 2008 | | Pitcher | Minnesota Twins |
| Pete Mikkelsen | April 17, 1964 | September 18, 1972 | Pitcher | New York Yankees, Pittsburgh Pirates, Chicago Cubs, St. Louis Cardinals, Los Angeles Dodgers |
| Hank Miklos | April 23, 1944 | May 15, 1944 | Pitcher | Chicago Cubs |
| Eddie Miksis | June 17, 1944 | September 26, 1958 | Utility player | Brooklyn Dodgers, Chicago Cubs, St. Louis Cardinals, Baltimore Orioles, Cincinnati Reds |
| Bob Milacki | September 18, 1988 | September 21, 1996 | Pitcher | Baltimore Orioles, Cleveland Indians, Kansas City Royals, Seattle Mariners |
| Clyde Milan | August 19, 1907 | September 22, 1922 | Outfielder | Washington Senators |
| Horace Milan | August 29, 1915 | September 29, 1917 | Outfielder | Washington Senators |
| Larry Milbourne | April 6, 1974 | September 29, 1984 | Utility infielder | Houston Astros, Seattle Mariners, New York Yankees, Minnesota Twins, Cleveland Indians, Philadelphia Phillies |
| Mike Milchin | May 14, 1996 | September 29, 1996 | Pitcher | Minnesota Twins, Baltimore Orioles |
| Aaron Miles | September 11, 2003 | | Second baseman | Chicago White Sox, Colorado Rockies, St. Louis Cardinals, Chicago Cubs, Los Angeles Dodgers |
| Carl Miles | June 8, 1940 | July 2, 1940 | Pitcher | Philadelphia Athletics |
| Dee Miles | July 7, 1935 | July 5, 1943 | Outfielder | Washington Senators, Philadelphia Athletics, Boston Red Sox |
| Don Miles | September 9, 1958 | September 20, 1958 | Outfielder | Los Angeles Dodgers |
| Jim Miles | September 7, 1968 | September 9, 1969 | Pitcher | Washington Senators |
| Mike Miley | July 5, 1975 | October 3, 1976 | Shortstop | California Angels |
| Wade Miley | August 20, 2011 | | Pitcher | Arizona Diamondbacks |
| Sam Militello | August 9, 1992 | April 22, 1993 | Pitcher | New York Yankees |
| Johnny Miljus | October 2, 1915 | September 25, 1929 | Pitcher | Pittsburgh Burghers, Brooklyn Robins, Pittsburgh Pirates, Cleveland Indians |
| Félix Millán | June 2, 1966 | August 12, 1977 | Second baseman | Atlanta Braves, New York Mets |
| Kevin Millar | April 11, 1998 | | First baseman | Florida Marlins, Boston Red Sox, Baltimore Orioles, Toronto Blue Jays |
| Frank Millard | May 4, 1890 | May 4, 1890 | Second baseman | St. Louis Browns |
| Lastings Milledge | May 30, 2006 | | Outfielder | New York Mets, Washington Nationals, Pittsburgh Pirates, Chicago White Sox |
| Andrew Miller | August 30, 2006 | | Pitcher | Detroit Tigers, Florida Marlins, Boston Red Sox |
| Bert Miller | July 15, 1897 | August 3, 1897 | Pitcher | Louisville Colonels |
| Bill Miller (OF) | August 23, 1902 | August 23, 1902 | Outfielder | Pittsburgh Pirates |
| Bill Miller (RHP) | October 2, 1937 | October 2, 1937 | Pitcher | St. Louis Browns |
| Bill Miller (LHP) | April 20, 1952 | May 8, 1955 | Pitcher | New York Yankees, Baltimore Orioles |
| Bing Miller | April 16, 1921 | September 5, 1936 | Outfielder | Washington Senators, Philadelphia Athletics, St. Louis Browns, Boston Red Sox |
| Bob Miller (1890s P) | August 30, 1890 | July 14, 1891 | Pitcher | Rochester Broncos, Washington Statesmen |
| Bob Miller (1949–58 P) | September 16, 1949 | August 10, 1958 | Pitcher | Philadelphia Phillies |
| Bob Miller (1953–62 P) | June 25, 1953 | September 18, 1962 | Pitcher | Detroit Tigers, Cincinnati Reds, New York Mets |
| Bob Miller (1957–74 P) | June 25, 1957 | September 28, 1974 | Pitcher | St. Louis Cardinals, New York Mets, Los Angeles Dodgers, Minnesota Twins, Cleveland Indians, Chicago White Sox, Chicago Cubs, San Diego Padres, Pittsburgh Pirates, Detroit Tigers |
| Bruce Miller | August 4, 1973 | August 28, 1976 | Third baseman | San Francisco Giants |
| Charlie Miller (SS) | June 29, 1912 | September 18, 1912 | Shortstop | St. Louis Browns |
| Charlie Miller (PH) | October 2, 1915 | October 2, 1915 | Pinch hitter | Baltimore Terrapins |
| Chuck Miller | September 19, 1913 | October 5, 1914 | Outfielder | St. Louis Cardinals |
| Corky Miller | September 4, 2001 | | Catcher | Cincinnati Reds, Minnesota Twins, Boston Red Sox, Atlanta Braves, Chicago White Sox |
| Cyclone Miller | July 11, 1884 | October 14, 1886 | Pitcher | Chicago Browns/Pittsburgh Stogies, Providence Grays, Philadelphia Quakers, Philadelphia Athletics (AA) |
| Damian Miller | August 10, 1997 | September 30, 2007 | Catcher | Minnesota Twins, Arizona Diamondbacks, Chicago Cubs, Oakland Athletics, Milwaukee Brewers |
| Darrell Miller | August 14, 1984 | October 1, 1988 | Utility player | California Angels |
| Doc Miller | May 4, 1910 | September 18, 1914 | Outfielder | Chicago Cubs, Boston Doves/Rustlers/Braves, Philadelphia Phillies, Cincinnati Reds |
| Doggie Miller | May 1, 1884 | September 25, 1896 | Catcher | Pittsburgh Alleghenys/Pirates, St. Louis Browns (NL), Louisville Colonels |
| Dots Miller | April 16, 1909 | September 27, 1921 | Utility infielder | Pittsburgh Pirates, St. Louis Cardinals, Philadelphia Phillies |
| Dusty Miller (1890s OF) | September 23, 1889 | August 20, 1899 | Outfielder | Baltimore Orioles (AA), St. Louis Browns (AA), Cincinnati Reds, St. Louis Browns (NL) |
| Dusty Miller (1900s OF) | April 17, 1902 | July 22, 1902 | Outfielder | Chicago Orphans |
| Dyar Miller | June 9, 1975 | September 2, 1981 | Pitcher | Baltimore Orioles, California Angels, Toronto Blue Jays, New York Mets |
| Ed Miller (OF) | July 18, 1884 | August 2, 1884 | Outfielder | Toledo Blue Stockings |
| Ed Miller (1B) | September 18, 1912 | July 3, 1918 | First baseman | St. Louis Browns, Cleveland Indians |
| Eddie Miller (IF) | September 9, 1936 | September 24, 1950 | Shortstop | Cincinnati Reds, Boston Bees/Braves, Philadelphia Phillies, St. Louis Cardinals |
| Eddie Miller (OF) | September 5, 1977 | September 30, 1984 | Outfielder | Texas Rangers, Atlanta Braves, Detroit Tigers, San Diego Padres |
| Elmer Miller (OF) | April 26, 1912 | September 30, 1922 | Outfielder | St. Louis Cardinals, New York Yankees, Boston Red Sox |
| Elmer Miller (P) | June 21, 1929 | August 22, 1929 | Pitcher | Philadelphia Phillies |
| Frank Miller | July 12, 1913 | July 30, 1923 | Pitcher | Chicago White Sox, Pittsburgh Pirates, Atlanta Braves |
| Fred Miller | July 8, 1910 | August 15, 1910 | Pitcher | Brooklyn Superbas |
| George Miller | September 6, 1877 | July 22, 1884 | Catcher | Cincinnati Reds (1876–1880), Cincinnati Red Stockings (AA) |
| Hack Miller (OF) | September 22, 1916 | May 21, 1925 | Outfielder | Brooklyn Robins, Boston Red Sox, Chicago Cubs |
| Hack Miller (C) | April 18, 1944 | July 5, 1945 | Catcher | Detroit Tigers |
| Hughie Miller | June 18, 1911 | September 18, 1915 | First baseman | Philadelphia Phillies, St. Louis Terriers |
| Jai Miller | June 22, 2008 | | Outfielder | Florida Marlins, Kansas City Royals, Oakland Athletics |
| Jake Miller (OF) | July 15, 1922 | July 17, 1922 | Outfielder | Pittsburgh Pirates |
| Jake Miller (P) | September 11, 1924 | September 24, 1933 | Pitcher | Cleveland Indians, Chicago White Sox |
| Jason Miller | May 26, 2007 | June 4, 2007 | Pitcher | Minnesota Twins |
| Jim Miller (2B) | September 9, 1901 | September 30, 2001 | Second baseman | New York Giants |
| Jim Miller (P) | September 1, 2008 | | Pitcher | Baltimore Orioles, Colorado Rockies |
| Joe Miller (2B) | June 26, 1872 | July 28, 1875 | Second baseman | Washington Nationals (NA), Keokuk Westerns, Chicago White Stockings |
| Joe Miller (SS) | May 1, 1884 | September 15, 1885 | Shortstop | Toledo Blue Stockings, Louisville Colonels |
| John Miller (P) | September 22, 1962 | May 1, 1967 | Pitcher | Baltimore Orioles |
| John Miller (1B) | September 11, 1966 | September 27, 1969 | First baseman | New York Yankees, Los Angeles Dodgers |
| Justin Miller | April 12, 2002 | | Pitcher | Toronto Blue Jays, Florida Marlins, San Francisco Giants, Los Angeles Dodgers |
| Keith Miller (IF) | June 16, 1987 | May 13, 1995 | Second baseman | New York Mets, Kansas City Royals |
| Keith Miller (OF) | April 23, 1988 | October 1, 1989 | Outfielder | Philadelphia Phillies |
| Kohly Miller | September 16, 1892 | October 2, 1897 | Second baseman | Washington Senators (NL), St. Louis Browns (NL), Philadelphia Phillies |
| Kurt Miller | June 11, 1994 | April 27, 1999 | Pitcher | Florida Marlins, Chicago Cubs |
| Larry Miller | June 21, 1964 | September 17, 1966 | Pitcher | Los Angeles Dodgers, New York Mets |
| Lemmie Miller | May 22, 1984 | June 2, 1984 | Outfielder | Los Angeles Dodgers |
| Matt Miller (LHP) | May 8, 2001 | April 4, 2002 | Pitcher | Detroit Tigers |
| Matt Miller (RHP) | June 27, 2003 | June 12, 2007 | Pitcher | Colorado Rockies, Cleveland Indians |
| Norm Miller | September 11, 1965 | September 16, 1974 | Outfielder | Houston Astros, Atlanta Braves |
| Orlando Miller | July 8, 1994 | September 15, 1997 | Shortstop | Houston Astros, Detroit Tigers |
| Otto Miller (C) | July 16, 1910 | September 24, 1922 | Catcher | Brooklyn Superbas/Dodgers/Robins |
| Otto Miller (3B) | April 17, 1927 | April 29, 1932 | Third baseman | St. Louis Browns, Boston Red Sox |
| Ox Miller | August 7, 1943 | September 19, 1947 | Pitcher | Washington Senators, St. Louis Browns, Chicago Cubs |
| Paul Miller | July 30, 1991 | September 28, 1993 | Pitcher | Pittsburgh Pirates |
| Ralph Miller (RHP) | May 4, 1898 | May 26, 1899 | Pitcher | Brooklyn Bridegrooms, Baltimore Orioles (NL) |
| Ralph Miller (3B) | April 14, 1920 | September 30, 1924 | Third baseman | Philadelphia Phillies, Washington Senators |
| Ralph Miller (LHP) | September 16, 1921 | September 16, 1921 | Pitcher | Washington Senators |
| Randy Miller | September 7, 1977 | September 16, 1978 | Pitcher | Baltimore Orioles, Montreal Expos |
| Ray Miller | April 14, 1917 | August 22, 1917 | First baseman | Cleveland Indians, Pittsburgh Pirates |
| Red Miller | July 13, 1923 | July 13, 1923 | Pitcher | Philadelphia Phillies |
| Rick Miller | September 4, 1971 | October 4, 1985 | Outfielder | Boston Red Sox, California Angels |
| Rod Miller | September 28, 1957 | September 28, 1957 | Pinch hitter | Brooklyn Dodgers |
| Roger Miller | September 8, 1974 | September 13, 1974 | Pitcher | Milwaukee Brewers |
| Ronny Miller | September 10, 1941 | September 10, 1941 | Pitcher | Washington Senators |
| Roscoe Miller | April 25, 1901 | July 30, 1904 | Pitcher | Detroit Tigers, New York Giants, Pittsburgh Pirates |
| Rudy Miller | September 19, 1929 | September 20, 1929 | Third baseman | Philadelphia Athletics |
| Russ Miller | September 24, 1927 | September 27, 1928 | Pitcher | Philadelphia Phillies |
| Stu Miller | August 12, 1952 | April 23, 1968 | Pitcher | St. Louis Cardinals, Philadelphia Phillies, New York/San Francisco Giants, Baltimore Orioles, Atlanta Braves |
| Tom Miller (C) | October 24, 1874 | October 29, 1875 | Catcher | Philadelphia Athletics (1860–76), St. Louis Brown Stockings |
| Tom Miller (PH) | July 29, 1918 | May 13, 1919 | Pinch hitter | Boston Braves |
| Travis Miller | August 25, 1996 | June 25, 2002 | Pitcher | Minnesota Twins |
| Trever Miller | September 4, 1996 | | Pitcher | Detroit Tigers, Houston Astros, Philadelphia Phillies, Los Angeles Dodgers, Toronto Blue Jays, Tampa Bay Devil Rays/Rays, St. Louis Cardinals, Boston Red Sox |
| Wade Miller | July 7, 1999 | April 22, 2007 | Pitcher | Houston Astros, Boston Red Sox, Chicago Cubs |
| Walt Miller | September 20, 1911 | October 6, 1911 | Pitcher | Brooklyn Dodgers |
| Ward Miller | April 14, 1909 | July 15, 1917 | Outfielder | Pittsburgh Pirates, Cincinnati Reds, Chicago Cubs, St. Louis Terriers, St. Louis Browns |
| Warren Miller | July 29, 1909 | June 9, 1911 | outfielder | Washington Senators |
| Whitey Miller | September 15, 1944 | September 29, 1944 | Pitcher | New York Giants |
| Joe Millette | July 16, 1992 | June 27, 1993 | Shortstop | Philadelphia Phillies |
| Ralph Milliard | May 12, 1996 | September 27, 1998 | Second baseman | Florida Marlins, New York Mets |
| Wally Millies | September 23, 1934 | May 21, 1941 | Catcher | Brooklyn Dodgers, Washington Senators, Philadelphia Phillies |
| Billy Milligan | April 30, 1901 | May 15, 1904 | Pitcher | Philadelphia Athletics, New York Giants |
| Jocko Milligan | May 1, 1884 | September 26, 1893 | Catcher | Philadelphia Athletics (AA), St. Louis Browns (AA), Philadelphia Athletics (1890–91), Washington Senators (NL), Baltimore Orioles (NL), New York Giants |
| John Milligan | August 11, 1928 | June 23, 1934 | Pitcher | Philadelphia Phillies, Washington Senators |
| Randy Milligan | September 12, 1987 | August 11, 1994 | First baseman | New York Mets, Pittsburgh Pirates, Baltimore Orioles, Cleveland Indians, Cincinnati Reds, Montreal Expos |
| Bob Milliken | April 22, 1953 | July 29, 1954 | Pitcher | Brooklyn Dodgers |
| Alan Mills | April 14, 1990 | October 5, 2001 | Pitcher | New York Yankees, Baltimore Orioles, Los Angeles Dodgers |
| Art Mills | April 16, 1927 | June 11, 1928 | Pitcher | Boston Braves |
| Bill Mills | May 19, 1944 | June 3, 1944 | Catcher | Philadelphia Athletics |
| Brad Mills (IF) | June 8, 1980 | October 2, 1983 | Third baseman | Montreal Expos |
| Brad Mills (P) | June 18, 2009 | | Pitcher | Toronto Blue Jays |
| Buster Mills | April 18, 1934 | June 1, 1946 | Outfielder | St. Louis Cardinals, Brooklyn Dodgers, Boston Red Sox, St. Louis Browns, New York Yankees, Cleveland Indians |
| Charlie Mills | May 18, 1871 | September 28, 1872 | Catcher | New York Mutuals |
| Dick Mills | September 7, 1970 | September 13, 1970 | Pitcher | Boston Red Sox |
| Everett Mills | May 5, 1871 | October 17, 1876 | First baseman | Washington Olympics, Baltimore Canaries, Hartford Dark Blues |
| Frank Mills | September 22, 1914 | September 30, 1914 | Catcher | Cleveland Naps |
| Jack Mills | July 1, 1911 | August 19, 1911 | Third baseman | Cleveland Naps |
| Lefty Mills | June 10, 1934 | August 29, 1940 | Pitcher | St. Louis Browns |
| Rupert Mills | June 23, 1915 | October 3, 1915 | First baseman | Newark Peppers |
| Willie Mills | July 13, 1901 | July 17, 1901 | Pitcher | New York Giants |
| Kevin Millwood | July 14, 1997 | | Pitcher | Atlanta Braves, Philadelphia Phillies, Cleveland Indians, Texas Rangers, Baltimore Orioles, Colorado Rockies |
| Al Milnar | April 20, 1936 | June 10, 1946 | Pitcher | Cleveland Indians, St. Louis Browns, Philadelphia Phillies |
| Pete Milne | September 15, 1948 | May 14, 1950 | Outfielder | New York Giants |
| Brian Milner | June 23, 1978 | June 26, 1978 | Catcher | Toronto Blue Jays |
| Eddie Milner | September 2, 1980 | July 29, 1988 | Outfielder | Cincinnati Reds, San Francisco Giants |
| John Milner | September 15, 1971 | October 3, 1982 | Utility player | New York Mets, Pittsburgh Pirates, Montreal Expos |
| Tom Milone | September 3, 2011 | | Pitcher | Washington Nationals |
| Mike Milosevich | April 30, 1944 | September 15, 1945 | Shortstop | New York Yankees |
| George Milstead | June 27, 1924 | September 14, 1926 | Pitcher | Chicago Cubs |
| Eric Milton | April 5, 1998 | | Pitcher | Minnesota Twins, Philadelphia Phillies, Cincinnati Reds, Los Angeles Dodgers |
| Larry Milton | May 7, 1903 | May 7, 1903 | Pitcher | St. Louis Cardinals |
| Mike Mimbs | May 6, 1995 | May 16, 1997 | Pitcher | Philadelphia Phillies |
| Cotton Minahan | April 21, 1907 | May 15, 1907 | Pitcher | Cincinnati Reds |
| Rudy Minarcin | April 11, 1955 | September 27, 1957 | Pitcher | Cincinnati Redlegs, Boston Red Sox |
| Don Mincher | April 18, 1960 | October 4, 1972 | First baseman | Washington Senators/Minnesota Twins, California Angels, Seattle Pilots, Oakland Athletics, Washington Senators/Texas Rangers |
| Ed Mincher | May 4, 1871 | June 26, 1872 | Outfielder | Fort Wayne Kekiongas, Washington Nationals (NA) |
| Nate Minchey | September 12, 1993 | September 25, 1997 | Pitcher | Boston Red Sox, Colorado Rockies |
| Ray Miner | September 15, 1921 | September 15, 1921 | Pitcher | Philadelphia Athletics |
| Zach Miner | June 4, 2006 | | Pitcher | Detroit Tigers |
| Craig Minetto | July 4, 1978 | May 15, 1981 | Pitcher | Oakland Athletics |
| Steve Mingori | August 5, 1970 | September 2, 1979 | Pitcher | Cleveland Indians, Kansas City Royals |
| Dan Minnehan | September 20, 1895 | September 29, 1895 | Third baseman | Louisville Colonels |
| Paul Minner | September 12, 1946 | June 12, 1956 | Pitcher | Brooklyn Dodgers, Chicago Cubs |
| Don Minnick | September 23, 1957 | September 28, 1957 | Pitcher | Washington Senators |
| Blas Minor | July 28, 1992 | July 14, 1997 | Pitcher | Pittsburgh Pirates, New York Mets, Seattle Mariners, Houston Astros |
| Damon Minor | September 2, 2000 | June 24, 2004 | First baseman | San Francisco Giants |
| Mike Minor | August 9, 2010 | | Pitcher | Atlanta Braves |
| Ryan Minor | September 13, 1998 | October 7, 2001 | Third baseman | Baltimore Orioles, Montreal Expos |
| Minnie Miñoso | April 19, 1949 | October 5, 1980 | Outfielder | Cleveland Indians, Chicago White Sox, St. Louis Cardinals, Washington Senators (1961–71) |
| Jim Minshall | September 14, 1974 | September 11, 1975 | Pitcher | Pittsburgh Pirates |
| Greg Minton | September 7, 1975 | September 29, 1990 | Pitcher | San Francisco Giants, Kansas City Royals |
| Steve Mintz | May 18, 1995 | October 2, 1999 | Pitcher | San Francisco Giants, Anaheim Angels |
| Gino Minutelli | September 18, 1990 | September 9, 1993 | Pitcher | Cincinnati Reds, San Francisco Giants |
| Paul Mirabella | July 28, 1978 | September 27, 1990 | Pitcher | Texas Rangers, New York Yankees, Toronto Blue Jays, Baltimore Orioles, Seattle Mariners, Milwaukee Brewers |
| Doug Mirabelli | August 27, 1996 | September 30, 2007 | Catcher | San Francisco Giants, Texas Rangers, Boston Red Sox, San Diego Padres |
| Ángel Miranda | June 5, 1993 | June 6, 1997 | Pitcher | Milwaukee Brewers |
| Juan Miranda | September 18, 2008 | | First baseman | New York Yankees, Arizona Diamondbacks |
| Willy Miranda | May 6, 1951 | September 7, 1959 | Shortstop | Washington Senators, Chicago White Sox, St. Louis Browns, New York Yankees, Baltimore Orioles |
| Pat Misch | September 21, 2006 | | Pitcher | San Francisco Giants, New York Mets |
| John Misse | May 26, 1914 | October 8, 1914 | Utility infielder | St. Louis Terriers |
| Mike Misuraca | July 27, 1997 | August 11, 1997 | Pitcher | Milwaukee Brewers |
| Bobby Mitchell (P) | September 6, 1877 | August 19, 1882 | Pitcher | Cincinnati Reds (1876–1880), Cleveland Blues (NL), St. Louis Brown Stockings (AA) |
| Bobby Mitchell (1970s OF) | July 5, 1970 | September 28, 1975 | Outfielder | New York Yankees, Milwaukee Brewers |
| Bobby Mitchell (1980s OF) | September 1, 1980 | September 21, 1983 | Outfielder | Los Angeles Dodgers, Minnesota Twins |
| Charlie Mitchell | August 9, 1984 | September 10, 1985 | Pitcher | Boston Red Sox |
| Clarence Mitchell | June 2, 1911 | June 21, 1932 | Pitcher | Detroit Tigers, Cincinnati Reds, Brooklyn Robins, Philadelphia Phillies, St. Louis Cardinals, New York Giants |
| Craig Mitchell | September 25, 1975 | September 25, 1977 | Pitcher | Oakland Athletics |
| Dale Mitchell | September 15, 1946 | September 26, 1956 | Outfielder | Cleveland Indians, Brooklyn Dodgers |
| Fred Mitchell | April 27, 1901 | June 15, 1913 | Utility player | Boston Americans, Philadelphia Athletics, Philadelphia Phillies, Brooklyn Superbas |
| John Mitchell | September 8, 1986 | September 30, 1990 | Pitcher | New York Mets, Baltimore Orioles |
| Johnny Mitchell | May 21, 1921 | September 23, 1925 | Shortstop | New York Yankees, Boston Red Sox, Brooklyn Robins |
| Keith Mitchell | July 23, 1991 | September 27, 1998 | Outfielder | Atlanta Braves, Seattle Mariners, Cincinnati Reds, Boston Red Sox |
| Kevin Mitchell | September 4, 1984 | August 3, 1998 | Outfielder | New York Mets, San Diego Padres, San Francisco Giants, Seattle Mariners, Cincinnati Reds, Boston Red Sox, Cleveland Indians, Oakland Athletics |
| Larry Mitchell | August 11, 1996 | September 2, 1996 | Pitcher | Philadelphia Phillies |
| Mike Mitchell | April 11, 1907 | September 30, 1914 | Outfielder | Cincinnati Reds, Chicago Cubs, Pittsburgh Pirates, Washington Senators |
| Monroe Mitchell | July 11, 1923 | August 29, 1923 | Pitcher | Washington Senators |
| Paul Mitchell | July 1, 1975 | September 21, 1980 | Pitcher | Baltimore Orioles, Oakland Athletics, Seattle Mariners, Milwaukee Brewers |
| Roy Mitchell | September 10, 1910 | July 14, 1919 | Pitcher | St. Louis Browns, Chicago White Sox, Cincinnati Reds |
| Russ Mitchell | September 8, 2010 | | Third baseman | Los Angeles Dodgers |
| Willie Mitchell | September 22, 1909 | May 31, 1919 | Pitcher | Cleveland Indians, Detroit Tigers |
| Sergio Mitre | July 22, 2003 | | Pitcher | Chicago Cubs, Florida Marlins, New York Yankees, Milwaukee Brewers |
| Ralph Mitterling | July 7, 1916 | July 21, 1916 | Outfielder | Philadelphia Athletics |
| George Mitterwald | September 15, 1966 | September 24, 1977 | Catcher | Minnesota Twins, Chicago Cubs |
| Johnny Mize β | April 16, 1936 | September 26, 1953 | First baseman | St. Louis Cardinals, New York Giants, New York Yankees |
| Vinegar Bend Mizell | April 22, 1952 | July 25, 1962 | Pitcher | St. Louis Cardinals, Pittsburgh Pirates, New York Mets |
| John Mizerock | April 12, 1983 | October 1, 1989 | Catcher | Houston Astros, Atlanta Braves |
| Bill Mizeur | September 30, 1923 | September 13, 1924 | Pinch hitter | St. Louis Browns |
| Dave Mlicki | September 12, 1992 | September 23, 2002 | Pitcher | Cleveland Indians, New York Mets, Los Angeles Dodgers, Detroit Tigers, Houston Astros |
| Kevin Mmahat | September 9, 1989 | October 1, 1989 | Pitcher | New York Yankees |
| Dave Moates | September 21, 1974 | October 3, 1976 | Outfielder | Texas Rangers |
| Garrett Mock | June 8, 2008 | | Pitcher | Washington Nationals |
| Mike Modak | July 4, 1945 | September 29, 1945 | Pitcher | Cincinnati Reds |
| Brian Moehler | September 22, 1996 | | Pitcher | Detroit Tigers, Cincinnati Reds, Houston Astros, Florida Marlins |
| Chad Moeller | June 20, 2000 | | Catcher | Minnesota Twins, Arizona Diamondbacks, Milwaukee Brewers, Cincinnati Reds, Los Angeles Dodgers, New York Yankees, Baltimore Orioles |
| Danny Moeller | September 24, 1907 | September 30, 1916 | Outfielder | Pittsburgh Pirates, Washington Senators, Cleveland Indians |
| Dennis Moeller | July 28, 1992 | May 21, 1993 | Pitcher | Kansas City Royals, Pittsburgh Pirates |
| Joe Moeller | April 12, 1962 | September 29, 1971 | Pitcher | Los Angeles Dodgers |
| Ron Moeller | September 8, 1956 | September 25, 1963 | Pitcher | Los Angeles Angels, Washington Senators (1961–71) |
| Joe Moffet | May 6, 1884 | August 10, 1884 | First baseman | Toledo Blue Stockings |
| Sam Moffet | May 15, 1884 | June 22, 1888 | Utility player | Cleveland Blues (NL), Indianapolis Hoosiers (NL) |
| Randy Moffitt | June 11, 1972 | September 19, 1983 | Pitcher | San Francisco Giants, Houston Astros, Toronto Blue Jays |
| Herb Moford | April 12, 1955 | April 29, 1962 | Pitcher | St. Louis Cardinals, Detroit Tigers, Boston Red Sox, New York Mets |
| George Mogridge | August 17, 1911 | July 2, 1927 | Pitcher | Chicago White Sox, New York Yankees, Washington Senators, St. Louis Browns, Boston Braves |
| John Mohardt | April 15, 1922 | April 22, 1922 | Outfielder | Detroit Tigers |
| George Mohart | April 15, 1920 | May 30, 1921 | Pitcher | Brooklyn Robins |
| Kid Mohler | September 29, 1894 | September 30, 1894 | Second baseman | Washington Senators (NL) |
| Mike Mohler | April 7, 1993 | October 7, 2001 | Pitcher | Oakland Athletics, St. Louis Cardinals, Cleveland Indians, Arizona Diamondbacks |
| Dale Mohorcic | May 31, 1986 | October 1, 1990 | Pitcher | Texas Rangers, New York Yankees, Montreal Expos |
| Dustan Mohr | August 29, 2001 | July 8, 2007 | Outfielder | Minnesota Twins, San Francisco Giants, Colorado Rockies, Boston Red Sox, Tampa Bay Devil Rays |
| Bill Moisan | September 17, 1953 | September 25, 1953 | Pitcher | Chicago Cubs |
| Johnny Mokan | April 15, 1921 | October 2, 1927 | Outfielder | Pittsburgh Pirates, Philadelphia Phillies |
| Fenton Mole | September 1, 1949 | September 30, 1949 | First baseman | New York Yankees |
| Carlton Molesworth | September 14, 1895 | September 30, 1895 | Pitcher | Washington Senators (NL) |
| Bengie Molina | September 21, 1998 | October 3, 2010 | Catcher | Anaheim Angels/Los Angeles Angels of Anaheim, Toronto Blue Jays, San Francisco Giants, Texas Rangers |
| Gabe Molina | May 1, 1999 | May 26, 2003 | Pitcher | Baltimore Orioles, Atlanta Braves, St. Louis Cardinals |
| Gustavo Molina | April 2, 2007 | | Catcher | Chicago White Sox, Baltimore Orioles, New York Mets, Boston Red Sox, New York Yankees |
| Izzy Molina | August 15, 1996 | May 6, 2002 | Catcher | Oakland Athletics, Baltimore Orioles |
| José Molina | September 6, 1999 | | Catcher | Chicago Cubs, Anaheim Angels/Los Angeles Angels of Anaheim, New York Yankees, Toronto Blue Jays |
| Yadier Molina | June 3, 2004 | | Catcher | St. Louis Cardinals |
| Bob Molinaro | September 18, 1975 | October 2, 1983 | Outfielder | Detroit Tigers, Chicago White Sox, Baltimore Orioles, Chicago Cubs, Philadelphia Phillies |
| Paul Molitor β | April 7, 1978 | September 27, 1998 | Third baseman | Milwaukee Brewers, Toronto Blue Jays, Minnesota Twins |
| Fred Mollenkamp | August 29, 1914 | August 30, 1914 | First baseman | Philadelphia Phillies |
| Fritz Mollwitz | September 26, 1913 | September 28, 1919 | First baseman | Chicago Cubs, Cincinnati Reds, Pittsburgh Pirates, St. Louis Cardinals |
| Richie Moloney | September 20, 1970 | September 20, 1970 | Pitcher | Chicago White Sox |
| Vince Molyneaux | July 5, 1917 | July 18, 1918 | Pitcher | St. Louis Browns, Boston Red Sox |
| Blas Monaco | August 18, 1937 | May 22, 1946 | Second baseman | Cleveland Indians |
| Rinty Monahan | August 9, 1953 | August 30, 1953 | Pitcher | Philadelphia Athletics |
| Shane Monahan | July 9, 1998 | October 3, 1999 | Outfielder | Seattle Mariners |
| Carlos Monasterios | April 5, 2010 | | Pitcher | Los Angeles Dodgers |
| Bill Monbouquette | July 18, 1958 | September 3, 1968 | Pitcher | Boston Red Sox, Detroit Tigers, New York Yankees, San Francisco Giants |
| Freddie Moncewicz | June 19, 1928 | July 2, 1928 | Shortstop | Boston Red Sox |
| Alex Monchak | June 22, 1940 | September 1, 1940 | Shortstop | Philadelphia Phillies |
| Rick Monday | September 3, 1966 | June 20, 1984 | Outfielder | Kansas City/Oakland Athletics, Chicago Cubs, Los Angeles Dodgers |
| Raúl Mondesí | July 19, 1993 | May 27, 2005 | Outfielder | Los Angeles Dodgers, Toronto Blue Jays, New York Yankees, Arizona Diamondbacks, Pittsburgh Pirates, Anaheim Angels, Arizona Diamondbacks |
| Don Money | April 10, 1968 | September 17, 1983 | Third baseman | Philadelphia Phillies, Milwaukee Brewers |
| Sid Monge | September 12, 1975 | September 30, 1984 | Pitcher | California Angels, Cleveland Indians, Philadelphia Phillies, San Diego Padres, Detroit Tigers |
| Craig Monroe | July 28, 2001 | | Outfielder | Texas Rangers, Detroit Tigers, Chicago Cubs, Minnesota Twins, Pittsburgh Pirates |
| Ed Monroe | May 29, 1917 | April 19, 1918 | Pitcher | New York Yankees |
| Frank W. Monroe | July 18, 1884 | July 20, 1884 | Utility player | Indianapolis Hoosiers (AA) |
| John Monroe | April 16, 1921 | October 1, 1921 | Second baseman | New York Giants, Philadelphia Phillies |
| Larry Monroe | August 23, 1976 | September 30, 1976 | Pitcher | Chicago White Sox |
| Zach Monroe | June 27, 1958 | May 3, 1959 | Pitcher | New York Yankees |
| Ed Montague | May 14, 1928 | September 25, 1932 | Shortstop | Cleveland Indians |
| John Montague | September 9, 1973 | August 28, 1980 | Pitcher | Montreal Expos, Philadelphia Phillies, Seattle Mariners, California Angels |
| Rafael Montalvo | April 13, 1986 | April 13, 1986 | Pitcher | Houston Astros |
| Lou Montañez | August 5, 2008 | | Outfielder | Baltimore Orioles, Chicago Cubs |
| Willie Montañez | April 12, 1966 | October 2, 1982 | First baseman | California Angels, Philadelphia Phillies, San Francisco Giants, Atlanta Braves, New York Mets, Texas Rangers, San Diego Padres, Montreal Expos, Pittsburgh Pirates |
| Aurelio Monteagudo | September 1, 1963 | September 28, 1973 | Pitcher | Kansas City Athletics, Houston Astros, Chicago White Sox, Kansas City Royals, California Angels |
| René Monteagudo | September 6, 1938 | September 30, 1945 | Utility player | Washington Senators, Philadelphia Phillies |
| John Montefusco | September 3, 1974 | May 1, 1986 | Pitcher | San Francisco Giants, Atlanta Braves, San Diego Padres, New York Yankees |
| Manny Montejo | July 25, 1961 | September 15, 1961 | Pitcher | Detroit Tigers |
| Rich Monteleone | April 15, 1987 | July 11, 1996 | Pitcher | Seattle Mariners, California Angels, New York Yankees, San Francisco Giants |
| Felipe Montemayor | April 14, 1953 | June 12, 1955 | Outfielder | Pittsburgh Pirates |
| Agustín Montero | May 12, 2006 | June 28, 2006 | Pitcher | Chicago White Sox |
| Jesús Montero | September 1, 2011 | | Catcher | New York Yankees |
| Miguel Montero | September 6, 2006 | | Catcher | Arizona Diamondbacks |
| Al Montgomery | June 20, 1941 | September 17, 1941 | Catcher | Boston Braves |
| Bob Montgomery | September 6, 1970 | September 9, 1979 | Catcher | Boston Red Sox |
| Jeff Montgomery | August 1, 1987 | October 2, 1999 | Pitcher | Cincinnati Reds, Kansas City Royals |
| Monty Montgomery | September 14, 1971 | September 30, 1972 | Pitcher | Kansas City Royals |
| Ray Montgomery | July 3, 1996 | June 16, 1998 | Outfielder | Houston Astros |
| Steve Montgomery | April 3, 1996 | July 17, 2000 | Pitcher | Oakland Athletics, Philadelphia Phillies, San Diego Padres |
| Charlie Montoyo | September 7, 1993 | September 29, 1993 | Second baseman | Montreal Expos |
| Al Montreuil | September 1, 1972 | October 3, 1972 | Second baseman | Chicago Cubs |
| Luke Montz | September 4, 2008 | | Catcher | Washington Nationals |
| Ramón Monzant | July 2, 1954 | April 25, 1960 | Pitcher | New York/San Francisco Giants |
| Dan Monzon | April 25, 1972 | September 30, 1973 | Second baseman | Minnesota Twins |
| Joe Moock | September 1, 1967 | October 1, 1967 | Third baseman | New York Mets |
| Eric Moody | August 3, 1997 | September 18, 1997 | Pitcher | Texas Rangers |
| George Moolic | May 1, 1886 | September 7, 1886 | Catcher | Chicago Cubs |
| Leo Moon | July 9, 1932 | July 9, 1932 | Pitcher | Cleveland Indians |
| Wally Moon | April 13, 1954 | September 12, 1965 | Outfielder | St. Louis Cardinals, Los Angeles Dodgers |
| Jim Mooney | August 14, 1931 | August 27, 1934 | Pitcher | New York Giants, St. Louis Cardinals |
| Bill Mooneyham | April 19, 1986 | September 30, 1986 | Pitcher | Oakland Athletics |
| Adam Moore | September 17, 2009 | | Catcher | Seattle Mariners |
| Al Moore | September 27, 1925 | September 24, 1926 | Outfielder | New York Giants |
| Anse Moore | April 17, 1946 | September 29, 1946 | Outfielder | Detroit Tigers |
| Archie Moore | April 20, 1964 | September 28, 1965 | Outfielder | New York Yankees |
| Balor Moore | May 21, 1970 | August 6, 1980 | Pitcher | Montreal Expos, California Angels, Toronto Blue Jays |
| Barry Moore | May 25, 1965 | October 1, 1970 | Pitcher | Washington Senators (1961–71), Cleveland Indians |
| Bill Moore (P) | April 15, 1925 | April 15, 1925 | Pitcher | Detroit Tigers |
| Bill Moore (C) | September 7, 1926 | October 1, 1927 | Catcher | Boston Red Sox |
| Bill Moore (1B) | July 19, 1986 | July 25, 1986 | First baseman | Montreal Expos |
| Bobby Moore (P) | September 11, 1985 | October 6, 1985 | Pitcher | San Francisco Giants |
| Bobby Moore (OF) | September 5, 1991 | October 6, 1991 | Outfielder | Kansas City Royals |
| Brad Moore | June 14, 1988 | April 25, 1990 | Pitcher | Philadelphia Phillies |
| Carlos Moore | May 4, 1930 | May 30, 1930 | Pitcher | Washington Senators |
| Charley Moore | April 16, 1912 | May 13, 1912 | Utility infielder | Chicago Cubs |
| Charlie Moore | September 8, 1973 | October 4, 1987 | Catcher | Milwaukee Brewers, Toronto Blue Jays |
| Cy Moore | June 7, 1929 | September 24, 1934 | Pitcher | Brooklyn Robins/Dodgers, Philadelphia Phillies |
| Dee Moore | September 12, 1936 | September 29, 1946 | Catcher | Cincinnati Reds, Brooklyn Dodgers, Philadelphia Phillies |
| Donnie Moore | September 14, 1975 | August 7, 1988 | Pitcher | Chicago Cubs, St. Louis Cardinals, Milwaukee Brewers, Atlanta Braves, California Angels |
| Earl Moore | April 25, 1901 | October 10, 1914 | Pitcher | Cleveland Blues (AL)/Bronchos/Naps, New York Highlanders, Philadelphia Phillies, Buffalo Buffeds |
| Eddie Moore | September 25, 1923 | July 11, 1934 | Second baseman | Pittsburgh Pirates, Boston Braves, Brooklyn Robins, New York Giants, Chicago Cubs |
| Euel Moore | July 8, 1934 | July 26, 1936 | Pitcher | Philadelphia Phillies, New York Giants |
| Ferdie Moore | October 2, 1914 | October 3, 1914 | First baseman | Philadelphia Athletics |
| Frank Moore | June 14, 1905 | June 14, 1905 | Pitcher | Pittsburgh Pirates |
| Gary Moore | May 3, 1970 | May 23, 1970 | Outfielder | Los Angeles Dodgers |
| Gene Moore (P) | September 28, 1909 | September 2, 1912 | Outfielder | Pittsburgh Pirates, Cincinnati Reds |
| Gene Moore (OF) | September 19, 1931 | September 30, 1945 | Outfielder | Cincinnati Reds, St. Louis Cardinals, Boston Bees, Brooklyn Dodgers, Boston Braves, Washington Senators |
| Henry Moore | April 17, 1884 | October 19, 1884 | Outfielder | Washington Nationals (UA) |
| Jackie Moore | April 18, 1965 | September 20, 1965 | Catcher | Detroit Tigers |
| Jeremy Moore | September 2, 2011 | | Outfielder | Los Angeles Angels of Anaheim |
| Jerry Moore | April 17, 1884 | May 28, 1885 | Catcher | Altoona Mountain City, Cleveland Blues (NL), Detroit Wolverines |
| Jim Moore | September 21, 1928 | April 23, 1932 | Pitcher | Cleveland Indians, Chicago White Sox |
| Jimmy Moore | April 17, 1930 | September 27, 1931 | Outfielder | Chicago White Sox, Philadelphia Athletics |
| Johnny Moore | September 15, 1928 | September 26, 1945 | Outfielder | Chicago Cubs, Cincinnati Reds, Philadelphia Phillies |
| Jo-Jo Moore | September 17, 1930 | September 21, 1941 | Outfielder | New York Giants |
| Junior Moore | August 2, 1976 | September 25, 1980 | Third baseman | Atlanta Braves, Chicago White Sox |
| Kelvin Moore | August 28, 1981 | June 2, 1983 | First baseman | Oakland Athletics |
| Kerwin Moore | August 30, 1996 | September 29, 1996 | Outfielder | Oakland Athletics |
| Marcus Moore | July 9, 1993 | June 5, 1996 | Pitcher | Colorado Rockies, Cincinnati Reds |
| Matt Moore | September 14, 2011 | | Pitcher | Tampa Bay Rays |
| Mike Moore | April 11, 1982 | August 31, 1995 | Pitcher | Seattle Mariners, Oakland Athletics, Detroit Tigers |
| Molly Moore | June 30, 1875 | October 9, 1875 | Shortstop | Brooklyn Atlantics |
| Randy Moore | April 12, 1927 | September 7, 1937 | Outfielder | Chicago White Sox, Boston Braves, Brooklyn Dodgers, St. Louis Cardinals |
| Ray Moore | August 1, 1952 | September 6, 1963 | Pitcher | Brooklyn Dodgers, Baltimore Orioles, Chicago White Sox, Washington Senators/Minnesota Twins |
| Roy Moore | April 15, 1920 | May 8, 1923 | Pitcher | Philadelphia Athletics, Detroit Tigers |
| Scott Moore | September 4, 2006 | | Utility infielder | Chicago Cubs, Baltimore Orioles |
| Scrappy Moore | June 21, 1917 | July 5, 1917 | Third baseman | St. Louis Browns |
| Terry Moore | April 16, 1935 | September 24, 1948 | Outfielder | St. Louis Cardinals |
| Tommy Moore | September 15, 1972 | May 15, 1977 | Pitcher | New York Mets, St. Louis Cardinals, Texas Rangers, Seattle Mariners |
| Trey Moore | April 5, 1998 | July 15, 2001 | Pitcher | Montreal Expos, Atlanta Braves |
| Whitey Moore | September 27, 1936 | September 27, 1942 | Pitcher | Cincinnati Reds, St. Louis Cardinals |
| Wilcy Moore | April 14, 1927 | September 28, 1933 | Pitcher | New York Yankees, Boston Red Sox |
| Bob Moorhead | April 11, 1962 | September 20, 1965 | Pitcher | New York Mets |
| Bob Moose | September 19, 1967 | September 25, 1976 | Pitcher | Pittsburgh Pirates |
| Jake Mooty | September 9, 1936 | September 29, 1944 | Pitcher | Cincinnati Reds, Chicago Cubs, Detroit Tigers |
| Andrés Mora | April 13, 1976 | May 6, 1980 | Outfielder | Baltimore Orioles, Cleveland Indians |
| Melvin Mora | May 30, 1999 | | Third baseman | New York Mets, Baltimore Orioles, Colorado Rockies, Arizona Diamondbacks |
| David Moraga | June 11, 2000 | September 28, 2000 | Pitcher | Montreal Expos, Colorado Rockies |
| Franklin Morales | August 18, 2007 | | Pitcher | Colorado Rockies, Boston Red Sox |
| Jerry Morales | September 5, 1969 | September 28, 1983 | Outfielder | San Diego Padres, Chicago Cubs, St. Louis Cardinals, Detroit Tigers, New York Mets |
| José Morales (DH) | August 13, 1973 | June 4, 1984 | Designated hitter | Oakland Athletics, Montreal Expos, Minnesota Twins, Baltimore Orioles, Los Angeles Dodgers |
| José Morales (C) | September 8, 2007 | | Catcher | Minnesota Twins, Colorado Rockies |
| Kendry Morales | May 23, 2006 | | First baseman | Los Angeles Angels of Anaheim |
| Rich Morales | August 8, 1967 | October 2, 1974 | Utility infielder | Chicago White Sox, San Diego Padres |
| Willie Morales | April 9, 2000 | September 6, 2000 | Catcher | Baltimore Orioles |
| Al Moran | April 9, 1963 | May 10, 1964 | Shortstop | New York Mets |
| Bill Moran (C) | May 7, 1892 | July 5, 1895 | Catcher | St. Louis Browns (NL), Chicago Colts |
| Bill Moran (P) | April 12, 1974 | August 3, 1974 | Pitcher | Chicago White Sox |
| Billy Moran | April 15, 1958 | September 28, 1965 | Second baseman | Cleveland Indians, Los Angeles Angels |
| Charles Moran | April 29, 1903 | June 19, 1905 | Shortstop | Washington Senators, St. Louis Browns |
| Charley Moran | September 9, 1903 | October 4, 1908 | Catcher | St. Louis Cardinals |
| Harry Moran | June 23, 1912 | October 3, 1915 | Pitcher | Detroit Tigers, Buffalo Buffeds, Newark Peppers |
| Herbie Moran | April 16, 1908 | October 7, 1915 | Outfielder | Philadelphia Athletics, Boston Doves, Brooklyn Dodgers/Superbas, Cincinnati Reds, Boston Braves |
| Hiker Moran | September 29, 1938 | October 1, 1939 | Pitcher | Boston Braves |
| Pat Moran | May 15, 1901 | June 5, 1914 | Catcher | Boston Beaneaters, Chicago Cubs, Philadelphia Phillies |
| Roy Moran | September 3, 1912 | September 15, 1912 | Outfielder | Washington Senators |
| Sam Moran | August 28, 1895 | September 28, 1895 | Pitcher | Pittsburgh Pirates |
| Mickey Morandini | September 1, 1990 | October 1, 2000 | Second baseman | Philadelphia Phillies, Chicago Cubs, Toronto Blue Jays |
| José Morban | April 6, 2003 | September 28, 2003 | Utility infielder | Baltimore Orioles |
| Mike Mordecai | May 8, 1994 | September 21, 2005 | Utility infielder | Atlanta Braves, Montreal Expos, Florida Marlins |
| Forrest More | April 15, 1909 | September 8, 1909 | Pitcher | St. Louis Cardinals, Boston Doves |
| Ray Morehart | August 9, 1924 | September 29, 1927 | Second baseman | Chicago White Sox, New York Yankees |
| Dave Morehead | April 13, 1963 | September 29, 1970 | Pitcher | Boston Red Sox, Kansas City Royals |
| Seth Morehead | April 27, 1957 | September 15, 1961 | Pitcher | Philadelphia Phillies, Chicago Cubs, Milwaukee Braves |
| Danny Morejón | July 11, 1958 | August 3, 1958 | Outfielder | Cincinnati Redlegs |
| Brent Morel | September 7, 2010 | | Third baseman | Chicago White Sox |
| Ramón Morel | July 6, 1995 | September 27, 1997 | Pitcher | Pittsburgh Pirates, Chicago Cubs |
| Keith Moreland | October 1, 1978 | September 24, 1989 | Outfielder | Philadelphia Phillies, Chicago Cubs, San Diego Padres, Detroit Tigers, Baltimore Orioles |
| Mitch Moreland | July 29, 2010 | | First baseman | Texas Rangers |
| Harry Morelock | August 21, 1891 | August 9, 1892 | Shortstop | Philadelphia Phillies |
| Lew Moren | September 21, 1903 | September 23, 1910 | Pitcher | Pittsburgh Pirates, Philadelphia Phillies |
| Ángel Moreno | August 15, 1981 | June 25, 1982 | Pitcher | California Angels |
| Edwin Moreno | April 7, 2009 | | Pitcher | San Diego Padres |
| José Moreno | May 24, 1980 | May 11, 1982 | Utility player | New York Mets, San Diego Padres, California Angels |
| Juan Moreno | May 17, 2001 | April 16, 2002 | Pitcher | Texas Rangers, San Diego Padres |
| Julio Moreno | September 8, 1950 | June 26, 1953 | Pitcher | Washington Senators |
| Omar Moreno | September 6, 1975 | October 5, 1986 | Outfielder | Pittsburgh Pirates, Houston Astros, New York Yankees, Kansas City Royals, Atlanta Braves |
| Orber Moreno | May 25, 1999 | July 22, 2004 | Pitcher | Kansas City Royals, New York Mets |
| Roger Moret | September 13, 1970 | June 16, 1978 | Pitcher | Boston Red Sox, Atlanta Braves, Texas Rangers |
| Dave Morey | July 4, 1913 | July 17, 1913 | Pitcher | Philadelphia Athletics |
| Bill Morgan (1882–84) | August 17, 1882 | August 21, 1884 | Utility player | Pittsburgh Alleghenys, Richmond Virginians, Baltimore Monumentals |
| Bill Morgan (1883–84) | August 6, 1883 | July 23, 1884 | Utility player | Pittsburgh Alleghenys, Washington Nationals (AA) |
| Bobby Morgan | April 18, 1950 | April 20, 1958 | Utility infielder | Brooklyn Dodgers, Philadelphia Phillies, St. Louis Cardinals, Chicago Cubs |
| Chet Morgan | April 19, 1935 | September 29, 1938 | Outfielder | Detroit Tigers |
| Cy Morgan (1900s P) | September 18, 1903 | September 1, 1913 | Pitcher | St. Louis Browns, Boston Americans/Red Sox, Philadelphia Athletics, Cincinnati Reds |
| Cy Morgan (1920s P) | June 8, 1921 | May 1, 1922 | Pitcher | Boston Braves |
| Ed Morgan | April 11, 1928 | September 30, 1934 | First baseman | Cleveland Indians, Boston Red Sox |
| Eddie Morgan | April 14, 1936 | July 23, 1937 | Outfielder | St. Louis Cardinals, Brooklyn Dodgers |
| Joe Morgan (3B) | April 14, 1959 | October 3, 1964 | Third baseman | Milwaukee Braves, Kansas City Athletics, Philadelphia Phillies, Cleveland Indians, St. Louis Cardinals |
| Joe Morgan (2B) β | September 21, 1963 | September 30, 1984 | Second baseman | Houston Colt .45s/Astros, Cincinnati Reds, San Francisco Giants, Philadelphia Phillies, Oakland Athletics |
| Kevin Morgan | June 15, 1997 | June 15, 1997 | Third baseman | New York Mets |
| Mike Morgan | June 11, 1978 | September 2, 2002 | Pitcher | Oakland Athletics, New York Yankees, Seattle Mariners, Baltimore Orioles, Los Angeles Dodgers, Chicago Cubs, St. Louis Cardinals, Cincinnati Reds, Minnesota Twins, Texas Rangers, Arizona Diamondbacks |
| Nyjer Morgan | September 1, 2007 | | Outfielder | Pittsburgh Pirates, Washington Nationals, Milwaukee Brewers |
| Pidgey Morgan | May 4, 1875 | June 22, 1878 | Outfielder | St. Louis Red Stockings, Milwaukee Grays |
| Ray Morgan | August 7, 1911 | September 1, 1918 | Second baseman | Washington Senators |
| Red Morgan | June 20, 1906 | October 6, 1906 | Third baseman | Boston Americans |
| Tom Morgan | April 20, 1951 | June 8, 1963 | Pitcher | New York Yankees, Kansas City Athletics, Detroit Tigers, Washington Senators, Los Angeles Angels |
| Vern Morgan | August 10, 1954 | May 1, 1955 | Third baseman | Chicago Cubs |
| Moe Morhardt | September 7, 1961 | May 19, 1962 | First baseman | Chicago Cubs |
| Bill Moriarty | April 29, 1909 | May 3, 1909 | Shortstop | Cincinnati Reds |
| Ed Moriarty | June 21, 1935 | May 12, 1936 | Second baseman | Boston Braves |
| Gene Moriarty | June 18, 1884 | October 15, 1892 | Outfielder | Boston Beaneaters, Indianapolis Hoosiers (AA), Detroit Wolverines, St. Louis Browns (NL) |
| George Moriarty | September 27, 1903 | May 4, 1916 | Third baseman | Chicago Cubs, New York Highlanders, Detroit Tigers, Chicago White Sox |
| Mike Moriarty | April 11, 2002 | May 4, 2002 | Shortstop | Baltimore Orioles |
| Juan Morillo | September 24, 2006 | | Pitcher | Colorado Rockies, Minnesota Twins |
| John Morlan | July 20, 1973 | September 29, 1974 | Pitcher | Pittsburgh Pirates |
| Bill Morley | September 8, 1913 | September 9, 1913 | Second baseman | Washington Senators |
| Alvin Morman | April 2, 1996 | October 2, 1999 | Pitcher | Houston Astros, Cleveland Indians, San Francisco Giants, Kansas City Royals |
| Russ Morman | August 3, 1986 | September 27, 1997 | First baseman | Chicago White Sox, Kansas City Royals, Florida Marlins |
| Justin Morneau | June 10, 2003 | | First baseman | Minnesota Twins |
| Dan Morogiello | May 20, 1983 | September 22, 1983 | Pitcher | Baltimore Orioles |
| Jim Moroney | April 24, 1906 | July 23, 1912 | Pitcher | Boston Beaneaters, Philadelphia Phillies, Chicago Cubs |
| Jeff Moronko | September 1, 1984 | July 19, 1987 | Third baseman | Cleveland Indians, New York Yankees |
| Bill Morrell | April 20, 1926 | August 5, 1931 | Pitcher | Washington Senators, New York Giants |
| John Morrill | April 24, 1876 | July 8, 1890 | First baseman | Boston Red Caps/Beaneaters, Washington Nationals (1886–1889), Boston Reds (1890–91) |
| Danny Morris | September 10, 1961 | June 29, 1969 | Pitcher | Minnesota Twins |
| Doyt Morris | June 6, 1937 | September 22, 1937 | Outfielder | Philadelphia Athletics |
| Ed Morris (1880s P) | May 1, 1884 | October 1, 1890 | Pitcher | Columbus Buckeyes, Pittsburgh Alleghenys, Pittsburgh Burghers |
| Ed Morris (1920s P) | August 5, 1922 | September 21, 1931 | Pitcher | Chicago Cubs, Boston Red Sox |
| Hal Morris | July 29, 1988 | October 1, 2000 | First baseman | New York Yankees, Cincinnati Reds, Kansas City Royals, Detroit Tigers |
| Jack Morris | July 26, 1977 | August 7, 1994 | Pitcher | Detroit Tigers, Minnesota Twins, Toronto Blue Jays, Cleveland Indians |
| James Morris | September 11, 1884 | September 11, 1884 | Utility player | Baltimore Monumentals |
| Jim Morris | September 18, 1999 | May 9, 2000 | Pitcher | Tampa Bay Devil Rays |
| John Morris (P) | July 19, 1966 | October 2, 1974 | Pitcher | Philadelphia Phillies, Baltimore Orioles, Seattle Pilots/Milwaukee Brewers, San Francisco Giants |
| John Morris (OF) | August 5, 1986 | August 5, 1992 | Outfielder | St. Louis Cardinals, Philadelphia Phillies, California Angels |
| Matt Morris | April 4, 1997 | April 26, 2008 | Pitcher | St. Louis Cardinals, San Francisco Giants, Pittsburgh Pirates |
| Peter Morris | May 14, 1884 | May 14, 1884 | Shortstop | Washington Nationals (UA) |
| Walter Morris | August 31, 1908 | September 26, 1908 | Shortstop | St. Louis Cardinals |
| Warren Morris | April 5, 1999 | September 28, 2003 | Second baseman | Pittsburgh Pirates, Minnesota Twins, Detroit Tigers |
| Bill Morrisette | September 18, 1915 | September 23, 1920 | Pitcher | Philadelphia Athletics, Detroit Tigers |
| Guy Morrison | August 31, 1927 | April 27, 1928 | Pitcher | Boston Braves |
| Hank Morrison | May 28, 1887 | July 28, 1887 | Pitcher | Indianapolis Hoosiers (NL) |
| Jim Morrison | September 18, 1977 | September 28, 1988 | Third baseman | Philadelphia Phillies, Chicago White Sox, Pittsburgh Pirates, Detroit Tigers, Atlanta Braves |
| Johnny Morrison | September 28, 1920 | June 19, 1930 | Pitcher | Pittsburgh Pirates, Brooklyn Robins |
| Jon Morrison | August 1, 1884 | May 2, 1887 | Outfielder | Indianapolis Hoosiers (AA), New York Metropolitans |
| Logan Morrison | July 27, 2010 | | Outfielder | Florida Marlins |
| Mike Morrison | April 19, 1887 | September 21, 1890 | Pitcher | Cleveland Blues, Syracuse Stars (AA), Baltimore Orioles (AA) |
| Phil Morrison | September 30, 1921 | September 30, 1921 | Pitcher | Pittsburgh Pirates |
| Tom Morrison | September 18, 1895 | May 10, 1896 | Third baseman | Louisville Colonels |
| Frank Morrissey | July 13, 1901 | October 4, 1902 | Pitcher | Boston Americans, Chicago Orphans |
| Jack Morrissey | September 18, 1902 | July 6, 1903 | Second baseman | Cincinnati Reds |
| John Morrissey | May 2, 1881 | May 14, 1881 | Third baseman | Buffalo Bisons (NL) |
| Jo-Jo Morrissey | April 12, 1932 | September 23, 1936 | Utility infielder | Cincinnati Reds, Chicago White Sox |
| Tom Morrissey | July 12, 1882 | October 12, 1884 | Third baseman | Detroit Wolverines, Milwaukee Brewers (UA) |
| Brandon Morrow | April 3, 2007 | | Pitcher | Seattle Mariners, Toronto Blue Jays |
| Bud Morse | September 14, 1929 | September 29, 1929 | Second baseman | Philadelphia Athletics |
| Hap Morse | April 18, 1911 | April 23, 1911 | Shortstop | St. Louis Cardinals |
| Michael Morse | May 31, 2005 | | Outfielder | Seattle Mariners, Washington Nationals |
| Clayton Mortensen | June 29, 2009 | | Pitcher | St. Louis Cardinals, Oakland Athletics, Colorado Rockies |
| Bubba Morton | April 19, 1961 | September 28, 1969 | Outfielder | Detroit Tigers, Milwaukee Braves, California Angels |
| Carl Morton | April 11, 1969 | August 21, 1976 | Pitcher | Montreal Expos, Atlanta Braves |
| Charlie Morton (OF) | May 2, 1882 | June 23, 1885 | Utility player | Pittsburgh Alleghenys, St. Louis Browns (AA), Toledo Blue Stockings, Detroit Wolverines |
| Charlie Morton (P) | June 14, 2008 | | Pitcher | Atlanta Braves, Pittsburgh Pirates |
| Colt Morton | September 21, 2007 | | Catcher | San Diego Padres |
| Guy Morton | June 20, 1914 | June 6, 1924 | Pitcher | Cleveland Indians |
| Guy Morton Jr. | September 17, 1954 | September 17, 1954 | Pinch hitter | Boston Red Sox |
| Kevin Morton | July 5, 1991 | October 3, 1991 | Pitcher | Boston Red Sox |
| Sparrow Morton | July 15, 1884 | July 26, 1884 | Pitcher | Philadelphia Quakers |
| Walt Moryn | June 29, 1954 | September 28, 1961 | Outfielder | Brooklyn Dodgers, Chicago Cubs, St. Louis Cardinals, Pittsburgh Pirates |
| Ross Moschitto | April 15, 1965 | September 25, 1967 | Outfielder | New York Yankees |
| Guillermo Moscoso | May 30, 2009 | | Pitcher | Texas Rangers, Oakland Athletics |
| Bobby Mosebach | July 25, 2009 | | Pitcher | Los Angeles Angels of Anaheim |
| Lloyd Moseby | May 24, 1980 | October 6, 1991 | Outfielder | Toronto Blue Jays, Detroit Tigers |
| Dustin Moseley | July 17, 2006 | | Pitcher | Los Angeles Angels of Anaheim, New York Yankees, San Diego Padres |
| Earl Moseley | June 17, 1913 | September 25, 1916 | Pitcher | Boston Red Sox, Indianapolis Hoosiers (FL)/Newark Peppers, Cincinnati Reds |
| Arnie Moser | June 20, 1937 | July 3, 1937 | Pinch hitter | Cincinnati Reds |
| Walter Moser | September 3, 1906 | September 9, 1911 | Pitcher | Philadelphia Phillies, Boston Red Sox, St. Louis Browns |
| Jerry Moses | May 9, 1965 | August 9, 1975 | Catcher | Boston Red Sox, California Angels, Cleveland Indians, New York Yankees, Detroit Tigers, San Diego Padres, Chicago White Sox |
| John Moses | August 23, 1982 | October 4, 1992 | Outfielder | Seattle Mariners, Minnesota Twins, Detroit Tigers |
| Wally Moses | April 17, 1935 | September 30, 1951 | Outfielder | Philadelphia Athletics, Chicago White Sox, Boston Red Sox |
| Paul Moskau | June 21, 1977 | May 31, 1983 | Pitcher | Cincinnati Reds, Pittsburgh Pirates, Chicago Cubs |
| Doc Moskiman | August 23, 1910 | October 8, 1910 | First baseman | Boston Red Sox |
| Daniel Moskos | April 30, 2011 | | Pitcher | Pittsburgh Pirates |
| Jim Mosolf | September 9, 1929 | September 19, 1933 | Outfielder | Pittsburgh Pirates, Chicago Cubs |
| Julio Mosquera | August 17, 1996 | June 8, 2005 | Catcher | Toronto Blue Jays, Milwaukee Brewers |
| Brandon Moss | August 6, 2007 | | Outfielder | Boston Red Sox, Pittsburgh Pirates, Philadelphia Phillies |
| Charlie Moss | May 19, 1934 | September 16, 1936 | Catcher | Philadelphia Athletics |
| Damian Moss | April 26, 2001 | April 29, 2004 | Pitcher | Atlanta Braves, San Francisco Giants, Baltimore Orioles, Tampa Bay Devil Rays |
| Howie Moss | April 14, 1942 | September 26, 1946 | Utility player | New York Giants, Cincinnati Reds, Cleveland Indians |
| Les Moss | September 10, 1946 | September 1, 1958 | Catcher | St. Louis Browns, Boston Red Sox, Baltimore Orioles, Chicago White Sox |
| Mal Moss | April 29, 1930 | August 13, 1930 | Pitcher | Chicago Cubs |
| Ray Moss | April 17, 1926 | August 2, 1931 | Pitcher | Brooklyn Robins, Boston Braves |
| Don Mossi | April 17, 1954 | October 1, 1965 | Pitcher | Cleveland Indians, Detroit Tigers, Chicago White Sox, Kansas City Athletics |
| Earl Mossor | April 30, 1951 | May 16, 1951 | Pitcher | Brooklyn Dodgers |
| Johnny Mostil | June 20, 1918 | May 19, 1929 | Outfielder | Chicago White Sox |
| Andy Mota | August 31, 1991 | October 6, 1991 | Second baseman | Houston Astros |
| Danny Mota | September 15, 2000 | October 1, 2000 | Pitcher | Minnesota Twins |
| Guillermo Mota | May 2, 1999 | | Pitcher | Montreal Expos, Los Angeles Dodgers, Florida Marlins, Cleveland Indians, New York Mets, Milwaukee Brewers, San Francisco Giants |
| José Mota | May 24, 1991 | June 2, 1995 | Second baseman | San Diego Padres, Kansas City Royals |
| Manny Mota | April 16, 1962 | September 1, 1982 | Outfielder | San Francisco Giants, Pittsburgh Pirates, Montreal Expos, Los Angeles Dodgers |
| Darryl Motley | August 10, 1981 | May 17, 1987 | Outfielder | Kansas City Royals, Atlanta Braves |
| Bitsy Mott | April 17, 1945 | September 30, 1945 | Shortstop | Philadelphia Phillies |
| Jason Motte | September 3, 2008 | | Pitcher | St. Louis Cardinals |
| Chad Mottola | April 23, 1996 | July 26, 2006 | Outfielder | Cincinnati Reds, Toronto Blue Jays, Florida Marlins, Baltimore Orioles |
| Curt Motton | July 5, 1967 | October 2, 1974 | Outfielder | Baltimore Orioles, Milwaukee Brewers, California Angels |
| Frank Motz | August 27, 1890 | May 19, 1894 | First baseman | Philadelphia Phillies, Cincinnati Reds |
| Glen Moulder | April 28, 1946 | September 18, 1948 | Pitcher | Brooklyn Dodgers, St. Louis Browns, Chicago White Sox |
| Allie Moulton | September 25, 1911 | September 30, 1911 | Second baseman | St. Louis Browns |
| Tony Mounce | June 13, 2003 | September 22, 2003 | Pitcher | Texas Rangers |
| Frank Mountain | July 19, 1880 | August 17, 1886 | Pitcher | Troy Trojans, Detroit Wolverines, Worcester Ruby Legs, Philadelphia Athletics (AA), Columbus Buckeyes, Pittsburgh Alleghenys |
| Bill Mountjoy | September 29, 1883 | August 18, 1885 | Pitcher | Cincinnati Red Stockings (AA), Baltimore Orioles (AA) |
| Mike Moustakas | June 10, 2011 | | Third baseman | Kansas City Royals |
| James Mouton | April 4, 1994 | October 7, 2001 | Outfielder | Houston Astros, San Diego Padres, Montreal Expos, Milwaukee Brewers |
| Lyle Mouton | June 7, 1995 | May 19, 2001 | Outfielder | Chicago White Sox, Baltimore Orioles, Milwaukee Brewers, Florida Marlins |
| Ray Mowe | September 25, 1913 | October 3, 1913 | Shortstop | Brooklyn Superbas |
| Mike Mowrey | September 24, 1905 | August 13, 1917 | Third baseman | Cincinnati Reds, St. Louis Cardinals, Pittsburgh Pirates, Pittsburgh Burghers, Brooklyn Robins |
| Joe Mowry | May 13, 1933 | September 29, 1935 | Outfielder | Boston Braves |
| Ed Moyer | July 20, 1910 | October 4, 1910 | Pitcher | Washington Senators |
| Jamie Moyer | June 16, 1986 | | Pitcher | Chicago Cubs, Texas Rangers, St. Louis Cardinals, Baltimore Orioles, Boston Red Sox, Seattle Mariners, Philadelphia Phillies |
| Peter Moylan | April 12, 2006 | | Pitcher | Atlanta Braves |
| Mike Moynahan | August 20, 1880 | June 21, 1884 | Shortstop | Buffalo Bisons (NL), Cleveland Blues (NL), Detroit Wolverines, Philadelphia Athletics (AA) |
| Ron Mrozinski | June 20, 1954 | September 9, 1955 | Pitcher | Philadelphia Phillies |
| Phil Mudrock | April 19, 1963 | April 19, 1963 | Pitcher | Chicago Cubs |
| Bill Mueller (OF) | August 29, 1942 | September 25, 1945 | Outfielder | Chicago White Sox |
| Bill Mueller (3B) | April 18, 1996 | May 11, 2006 | Third baseman | San Francisco Giants, Chicago Cubs, Boston Red Sox, Los Angeles Dodgers |
| Don Mueller | August 2, 1948 | May 2, 1959 | Outfielder | New York Giants, Chicago White Sox |
| Gordie Mueller | April 19, 1950 | July 21, 1950 | Pitcher | Boston Red Sox |
| Heinie Mueller (OF) | September 25, 1920 | June 15, 1935 | Outfielder | St. Louis Cardinals, New York Giants, Boston Braves, St. Louis Browns |
| Heinie Mueller (2B) | April 19, 1938 | September 28, 1941 | Second baseman | Philadelphia Phillies |
| Les Mueller | August 15, 1941 | September 23, 1945 | Pitcher | Detroit Tigers |
| Ray Mueller | May 11, 1935 | September 9, 1951 | Catcher | Boston Braves/Bees, Pittsburgh Pirates, Cincinnati Reds, New York Giants |
| Walter Mueller | May 7, 1922 | September 25, 1926 | Outfielder | Pittsburgh Pirates |
| Willie Mueller | August 12, 1978 | September 20, 1981 | Pitcher | Milwaukee Brewers |
| Billy Muffett | August 3, 1957 | April 28, 1962 | Pitcher | St. Louis Cardinals, San Francisco Giants, Boston Red Sox |
| Joe Muich | September 4, 1924 | September 19, 1924 | Pitcher | Boston Braves |
| Joe Muir | April 21, 1951 | June 27, 1952 | Pitcher | Pittsburgh Pirates |
| Edward Mujica | June 21, 2006 | | Pitcher | Cleveland Indians, San Diego Padres, Florida Marlins |
| Hugh Mulcahy | July 24, 1935 | May 8, 1947 | Pitcher | Philadelphia Phillies, Pittsburgh Pirates |
| Mark Mulder | April 18, 2000 | July 9, 2008 | Pitcher | Oakland Athletics, St. Louis Cardinals |
| Mike Muldoon | May 1, 1882 | October 10, 1886 | Third baseman | Cleveland Blues (NL), Baltimore Orioles (AA) |
| Terry Mulholland | June 8, 1986 | June 3, 2006 | Pitcher | San Francisco Giants, Philadelphia Phillies, New York Yankees, Seattle Mariners, Chicago Cubs, Atlanta Braves, Pittsburgh Pirates, Los Angeles Dodgers, Cleveland Indians, Minnesota Twins, Arizona Diamondbacks |
| Tony Mullane | August 27, 1881 | July 26, 1894 | Pitcher | Detroit Wolverine, Louisville Eclipse, St. Louis Browns (AA), Toledo Blue Stockings, Cincinnati Red Stockings (AA)/Reds, Baltimore Orioles (NL), Cleveland Spiders |
| Greg Mulleavy | July 4, 1930 | April 13, 1933 | Shortstop | Chicago White Sox, Boston Red Sox |
| Billy Mullen | October 2, 1920 | June 5, 1928 | Third baseman | St. Louis Browns, Brooklyn Robins, Detroit Tigers |
| Charlie Mullen | May 18, 1910 | September 30, 1916 | First baseman | Chicago White Sox, New York Yankees |
| Jim Mullen | June 1, 1904 | July 8, 1905 | Second baseman | Philadelphia Athletics, Washington Senators |
| John Mullen | September 9, 1876 | September 9, 1876 | Catcher | Philadelphia Athletics (1860–76) |
| Martin Mullen | August 17, 1872 | August 17, 1872 | Outfielder | Cleveland Forest Citys |
| Moon Mullen | April 18, 1944 | October 1, 1944 | Second baseman | Philadelphia Phillies |
| Scott Mullen | August 31, 2000 | August 3, 2003 | Pitcher | Kansas City Royals, Los Angeles Dodgers |
| Freddie Muller | July 8, 1933 | May 13, 1934 | Second baseman | Boston Red Sox |
| Dick Mulligan | September 24, 1941 | May 4, 1947 | Pitcher | Washington Senators, Philadelphia Phillies, Boston Braves |
| Eddie Mulligan | September 23, 1915 | August 20, 1928 | Third baseman | Chicago Cubs, Chicago White Sox, Pittsburgh Pirates |
| Joe Mulligan | June 28, 1934 | September 30, 1934 | Pitcher | Boston Red Sox |
| John Mulligan | June 14, 1884 | June 14, 1884 | Third baseman | Washington Nationals (UA) |
| Sean Mulligan | September 1, 1996 | September 6, 1996 | Pinch hitter | San Diego Padres |
| George Mullin | May 4, 1902 | May 23, 1915 | Pitcher | Detroit Tigers, Washington Senators, Indianapolis Hoosiers (FL)/Newark Peppers |
| Henry Mullin | June 4, 1884 | September 24, 1884 | Outfielder | Washington Nationals (AA), Boston Reds (UA) |
| Pat Mullin | September 18, 1940 | September 27, 1953 | Outfielder | Detroit Tigers |
| Rance Mulliniks | June 18, 1977 | September 18, 1992 | Third baseman | California Angels, Kansas City Royals, Toronto Blue Jays |
| Fran Mullins | September 1, 1980 | September 30, 1986 | Utility infielder | Chicago White Sox, San Francisco Giants, Cleveland Indians |
| Greg Mullins | September 18, 1998 | September 22, 1998 | Pitcher | Milwaukee Brewers |
| Dominic Mulrenan | April 24, 1921 | August 5, 1921 | Pitcher | Chicago White Sox |
| Frank Mulroney | April 15, 1930 | June 24, 1930 | Pitcher | Boston Red Sox |
| Joe Mulvey | May 31, 1883 | May 14, 1895 | Third baseman | Providence Grays, Philadelphia Quakers/Phillies, Philadelphia Athletics (1890–91), Washington Senators (NL), Brooklyn Grooms |
| Kevin Mulvey | July 20, 2009 | | Pitcher | Minnesota Twins, Arizona Diamondbacks |
| Jerry Mumphrey | September 10, 1974 | September 30, 1988 | Outfielder | St. Louis Cardinals, San Diego Padres, New York Yankees, Houston Astros, Chicago Cubs |
| John Munce | August 19, 1884 | September 5, 1884 | Outfielder | Wilmington Quicksteps |
| Jake Munch | May 27, 1918 | August 27, 1918 | Utility player | Philadelphia Athletics |
| Bob Muncrief | September 30, 1937 | April 20, 1951 | Pitcher | St. Louis Browns, Cleveland Indians, Pittsburgh Pirates, Chicago Cubs, New York Yankees |
| George Mundinger | May 9, 1884 | May 20, 1884 | Catcher | Indianapolis Hoosiers (AA) |
| Bill Mundy | August 17, 1913 | October 4, 1913 | First baseman | Boston Red Sox |
| Red Munger | May 1, 1943 | September 23, 1956 | Pitcher | St. Louis Cardinals, Pittsburgh Pirates |
| Van Mungo | September 7, 1931 | September 2, 1945 | Pitcher | Brooklyn Robins/Dodgers, New York Giants |
| Carlos Muñiz | September 25, 2007 | | Pitcher | New York Mets |
| Manny Muñiz | September 3, 1971 | September 17, 1971 | Pitcher | Philadelphia Phillies |
| Horatio Munn | September 4, 1875 | September 4, 1875 | Second baseman | Brooklyn Atlantics |
| Scott Munninghoff | April 13, 1980 | May 4, 1980 | Pitcher | Philadelphia Phillies |
| Les Munns | April 22, 1934 | July 14, 1936 | Pitcher | Brooklyn Dodgers, St. Louis Cardinals |
| Arnie Muñoz | June 19, 2004 | September 28, 2007 | Pitcher | Chicago White Sox, Washington Nationals |
| Bobby Muñoz | May 29, 1993 | October 4, 2001 | Pitcher | New York Yankees, Philadelphia Phillies, Baltimore Orioles, Montreal Expos |
| Jose Munoz | April 7, 1996 | May 31, 1996 | Second baseman | Chicago White Sox |
| Mike Munoz | September 6, 1989 | April 26, 2000 | Pitcher | Los Angeles Dodgers, Detroit Tigers, Colorado Rockies, Texas Rangers |
| Noe Muñoz | April 30, 1995 | May 14, 1995 | Catcher | Los Angeles Dodgers |
| Oscar Múñoz | August 6, 1995 | September 30, 1995 | Pitcher | Minnesota Twins |
| Pedro Muñoz | September 1, 1990 | June 1, 1996 | Outfielder | Minnesota Twins, Oakland Athletics |
| Pete Munro | April 6, 1999 | October 1, 2004 | Pitcher | Toronto Blue Jays, Houston Astros |
| Eric Munson | July 18, 2000 | | Third baseman | Detroit Tigers, Tampa Bay Devil Rays, Houston Astros, Oakland Athletics |
| Joe Munson | September 18, 1925 | June 4, 1926 | Outfielder | Chicago Cubs |
| Red Munson | August 28, 1905 | October 7, 1905 | Catcher | Philadelphia Phillies |
| Thurman Munson | August 8, 1969 | August 1, 1979 | Catcher | New York Yankees |
| Scott Munter | May 11, 2005 | September 28, 2007 | Pitcher | San Francisco Giants |
| John Munyan | July 12, 1887 | October 4, 1891 | Catcher | Cleveland Blues (AA), Columbus Solons, St. Louis Browns (AA) |
| Steve Mura | September 5, 1978 | October 6, 1985 | Pitcher | San Diego Padres, St. Louis Cardinals, Chicago White Sox, Oakland Athletics |
| Masanori Murakami | September 1, 1964 | October 1, 1965 | Pitcher | San Francisco Giants |
| Bobby Murcer | September 8, 1965 | June 11, 1983 | Outfielder | New York Yankees, San Francisco Giants, Chicago Cubs |
| Simmy Murch | September 20, 1904 | May 22, 1908 | Utility infielder | St. Louis Cardinals, Brooklyn Superbas |
| Tim Murchison | June 21, 1917 | May 3, 1920 | Pitcher | St. Louis Cardinals, Cleveland Indians |
| Wilbur Murdoch | August 29, 1908 | October 3, 1908 | Outfielder | St. Louis Cardinals |
| Red Murff | April 21, 1956 | May 30, 1957 | Pitcher | Milwaukee Braves |
| Tim Murnane | April 26, 1872 | October 19, 1884 | First baseman | Middletown Mansfields, Philadelphia Athletics (1860–76), Philadelphia Whites, Boston Red Caps, Providence Grays, Boston Reds (UA) |
| Murphy, first name unknown | August 16, 1884 | August 16, 1884 | Utility player | Boston Reds (UA) |
| Bill Murphy | September 3, 2007 | | Pitcher | Arizona Diamondbacks, Toronto Blue Jays |
| Billy Murphy | April 15, 1966 | September 5, 1966 | Outfielder | New York Mets |
| Bob Murphy | May 27, 1890 | August 25, 1890 | Pitcher | New York Giants, Brooklyn Gladiators |
| Buzz Murphy | July 14, 1918 | September 21, 1919 | Outfielder | Boston Braves, Washington Senators |
| Clarence Murphy | June 17, 1886 | June 17, 1886 | Outfielder | Louisville Colonels |
| Con Murphy | September 11, 1884 | October 6, 1890 | Pitcher | Philadelphia Quakers, Brooklyn Ward's Wonders |
| Connie Murphy | September 17, 1893 | September 30, 1894 | Catcher | Cincinnati Reds |
| Dale Murphy | September 13, 1976 | May 21, 1993 | Outfielder | Atlanta Braves, Philadelphia Phillies, Colorado Rockies |
| Dan Murphy | August 10, 1989 | September 14, 1989 | Pitcher | San Diego Padres |
| Daniel Murphy | August 2, 2008 | | First baseman | New York Mets |
| Danny Murphy (C) | April 26, 1892 | June 11, 1892 | Catcher | New York Giants |
| Danny Murphy (2B) | September 17, 1900 | July 1, 1915 | Second baseman | New York Giants, Philadelphia Athletics, Brooklyn Tip-Tops |
| Danny Murphy (P) | June 18, 1960 | October 1, 1970 | Pitcher | Chicago cubs, Chicago White Sox |
| Dave Murphy | August 28, 1905 | August 30, 1905 | Shortstop | Boston Beaneaters |
| David Murphy | September 2, 2006 | | Outfielder | Boston Red Sox, Texas Rangers |
| Dick Murphy | June 13, 1954 | September 13, 1954 | Pinch runner | Cincinnati Redlegs |
| Donnie Murphy | September 18, 2004 | | Utility infielder | Kansas City Royals, Oakland Athletics, Florida Marlins |
| Herbert Murphy | April 14, 1914 | May 7, 1914 | Shortstop | Philadelphia Phillies |
| Dwayne Murphy | April 8, 1978 | October 1, 1989 | Outfielder | Oakland Athletics, Detroit Tigers, Philadelphia Phillies |
| Ed Murphy (P) | April 23, 1898 | September 19, 1903 | Pitcher | Philadelphia Phillies, St. Louis Cardinals |
| Ed Murphy (1B) | September 10, 1942 | September 27, 1942 | First baseman | Philadelphia Phillies |
| Eddie Murphy | August 16, 1912 | September 13, 1926 | Outfielder | Philadelphia Athletics, Chicago White Sox, Pittsburgh Pirates |
| Frank Murphy | July 2, 1901 | October 5, 1901 | Outfielder | Boston Beaneaters, New York Giants |
| Howard Murphy | August 4, 1909 | October 6, 1909 | Outfielder | St. Louis Cardinals |
| Joe Murphy | April 28, 1886 | August 19, 1887 | Pitcher | Cincinnati Red Stockings (AA), St. Louis Maroons, St. Louis Browns (AA) |
| John Murphy (P) | April 17, 1884 | September 12, 1884 | Pitcher | Altoona Mountain City, Wilmington Quicksteps |
| John Murphy (IF) | September 10, 1902 | September 25, 1903 | Shortstop | St. Louis Cardinals, Detroit Tigers |
| Johnny Murphy | May 19, 1932 | September 16, 1947 | Pitcher | New York Yankees, Boston Red Sox |
| Larry Murphy | May 30, 1891 | October 6, 1891 | Outfielder | Washington Statesmen |
| Leo Murphy | May 2, 1915 | September 25, 1915 | Catcher | Pittsburgh Pirates |
| Mike Murphy | May 17, 1912 | July 11, 1916 | Catcher | St. Louis Cardinals, Philadelphia Athletics |
| Morgan Murphy | April 22, 1890 | May 31, 1901 | Catcher | Boston Reds (1890–91), Cincinnati Reds, St. Louis Browns (NL), Pittsburgh Pirates, Philadelphia Phillies, Philadelphia Athletics |
| Pat Murphy | September 2, 1887 | October 3, 1890 | Catcher | New York Giants |
| Rob Murphy | September 13, 1985 | July 22, 1995 | Pitcher | Cincinnati Reds, Boston Red Sox, Seattle Mariners, Houston Astros, St. Louis Cardinals, New York Yankees, Los Angeles Dodgers, Florida Marlins |
| Tom Murphy | June 13, 1968 | May 8, 1979 | Pittsburgh Pirates | California Angels, Kansas City Royals, St. Louis Cardinals, Milwaukee Brewers, Boston Red Sox, Toronto Blue Jays |
| Tommy Murphy | May 4, 2006 | September 30, 2007 | Outfielder | Los Angeles Angels of Anaheim |
| Tony Murphy | October 15, 1884 | October 15, 1884 | Catcher | New York Metropolitans |
| Walter Murphy | April 19, 1931 | April 21, 1931 | Pitcher | Boston Red Sox |
| Willie Murphy | May 1, 1884 | August 2, 1884 | Outfielder | Cleveland Blues (NL), Washington Nationals (AA) |
| Yale Murphy | April 19, 1894 | July 26, 1897 | Utility player | New York Giants |
| A. J. Murray | May 16, 2007 | | Pitcher | Texas Rangers |
| Amby Murray | July 5, 1936 | July 19, 1936 | Pitcher | Boston Bees |
| Bill Murray | June 27, 1917 | September 21, 1917 | Second baseman | Washington Senators |
| Bobby Murray | September 24, 1923 | October 7, 1923 | Third baseman | Washington Senators |
| Calvin Murray | June 22, 1999 | October 1, 2004 | Outfielder | San Francisco Giants, Texas Rangers, Chicago Cubs |
| Dale Murray | July 7, 1974 | May 13, 1985 | Pitcher | Montreal Expos, Cincinnati Reds, New York Mets, Toronto Blue Jays, New York Yankees, Texas Rangers |
| Dan Murray | August 9, 1999 | September 30, 2000 | Pitcher | New York Mets, Kansas City Royals |
| Ed Murray | June 24, 1917 | June 24, 1917 | Shortstop | St. Louis Browns |
| Eddie Murray β | April 7, 1977 | September 20, 1997 | First baseman | Baltimore Orioles, Los Angeles Dodgers, New York Mets, Cleveland Indians, Anaheim Angels |
| George Murray | May 8, 1922 | May 1, 1933 | Pitcher | New York Yankees, Boston Red Sox, Washington Senators, Chicago White Sox |
| Glenn Murray | May 10, 1996 | July 24, 1996 | Outfielder | Philadelphia Phillies |
| Heath Murray | May 24, 1997 | July 21, 2002 | Pitcher | San Diego Padres, Detroit Tigers, Cleveland Indians |
| Jim Murray (OF) | September 2, 1902 | July 10, 1914 | Outfielder | Chicago Orphans, St. Louis Browns, Boston Braves |
| Jim Murray (P) | July 3, 1922 | September 24, 1922 | Pitcher | Brooklyn Robins |
| Joe Murray | August 17, 1950 | September 28, 1950 | Pitcher | Philadelphia Athletics |
| Larry Murray | September 7, 1974 | September 23, 1979 | Outfielder | New York Yankees, Oakland Athletics |
| Matt Murray | August 12, 1995 | September 25, 1995 | Pitcher | Atlanta Braves, Boston Red Sox |
| Miah Murray | May 17, 1884 | October 3, 1891 | Catcher | Providence Grays, Louisville Colonels, Washington Nationals (1886–1889), Washington Statesmen |
| Pat Murray | July 1, 1919 | August 22, 1919 | Pitcher | Philadelphia Phillies |
| Ray Murray | April 25, 1948 | September 25, 1954 | Catcher | Cleveland Indians, Philadelphia Athletics, Baltimore Orioles |
| Red Murray | June 16, 1906 | October 3, 1917 | Outfielder | St. Louis Cardinals, New York Giants, Chicago Cubs |
| Rich Murray | June 7, 1980 | July 4, 1983 | First baseman | San Francisco Giants |
| Tom Murray | June 20, 1894 | June 20, 1894 | Shortstop | Philadelphia Phillies |
| Tony Murray | October 6, 1923 | October 7, 1923 | Outfielder | Chicago Cubs |
| Ivan Murrell | September 28, 1963 | October 2, 1974 | Outfielder | Houston Astros, San Diego Padres, Atlanta Braves |
| Danny Murtaugh | July 6, 1941 | September 6, 1951 | Second baseman | Philadelphia Phillies, Boston Braves, Pittsburgh Pirates |
| Matt Murton | July 8, 2005 | | Outfielder | Chicago Cubs, Oakland Athletics, Colorado Rockies |
| Tony Muser | September 14, 1969 | October 1, 1978 | First baseman | Boston Red Sox, Chicago White Sox, Baltimore Orioles, Milwaukee Brewers |
| Dennis Musgraves | July 9, 1965 | July 29, 1965 | Pitcher | New York Mets |
| Stan Musial β | September 17, 1941 | September 29, 1963 | Outfielder | St. Louis Cardinals |
| Jeff Musselman | September 2, 1986 | September 7, 1990 | Pitcher | Toronto Blue Jays, New York Mets |
| Ron Musselman | August 18, 1982 | August 23, 1985 | Pitcher | Seattle Mariners, Toronto Blue Jays |
| Danny Musser | September 18, 1932 | September 18, 1932 | Third baseman | Washington Senators |
| Neal Musser | April 21, 2007 | | Pitcher | Kansas City Royals |
| Paul Musser | June 6, 1912 | August 12, 1919 | Pitcher | Washington Senators, Boston Red Sox |
| Barney Mussill | April 20, 1944 | July 26, 1944 | Pitcher | Philadelphia Phillies |
| Mike Mussina | August 4, 1991 | September 28, 2008 | Pitcher | Baltimore Orioles, New York Yankees |
| Alex Mustaikis | July 7, 1940 | August 3, 1940 | Pitcher | Boston Red Sox |
| Jeff Mutis | June 15, 1991 | July 31, 1994 | Pitcher | Cleveland Indians, Florida Marlins |
| George Myatt | August 16, 1938 | May 19, 1947 | Second baseman | New York Giants, Washington Senators |
| Glenn Myatt | April 15, 1920 | September 9, 1936 | Catcher | Philadelphia Athletics, Cleveland Indians, New York Giants, Detroit Tigers |
| Buddy Myer | September 26, 1925 | September 24, 1941 | Second baseman | Washington Senators, Boston Red Sox |
| Al Myers | September 27, 1884 | October 3, 1891 | Second baseman | Milwaukee Brewers (UA), Philadelphia Quakers, Kansas City Cowboys (NL), Washington Nationals (1886–1889), Philadelphia Phillies |
| Bert Myers | April 25, 1896 | April 27, 1900 | Third baseman | St. Louis Cardinals, Washington Senators (NL), Philadelphia Phillies |
| Billy Myers | April 16, 1935 | September 25, 1941 | Shortstop | Cincinnati Reds, Chicago Cubs |
| Brett Myers | July 24, 2002 | | Pitcher | Philadelphia Phillies, Houston Astros |
| Elmer Myers | October 6, 1915 | April 24, 1922 | Pitcher | Philadelphia Athletics, Cleveland Indians, Boston Red Sox |
| George Myers | May 2, 1884 | August 3, 1889 | Catcher | Buffalo Bisons (NL), St. Louis Maroons/Indianapolis Hoosiers (NL) |
| Greg Myers | September 12, 1987 | April 22, 2005 | Catcher | Toronto Blue Jays, California Angels, Minnesota Twins, Atlanta Braves, San Diego Padres, Baltimore Orioles, Oakland Athletics |
| Hap Myers | April 16, 1910 | September 30, 1915 | First baseman | Boston Red Sox, St. Louis Browns, Boston Braves, Brooklyn Tip-Tops |
| Henry Myers | August 20, 1881 | September 12, 1884 | Shortstop | Providence Grays, Baltimore Orioles (AA), Wilmington Quicksteps |
| Hy Myers | August 30, 1909 | May 7, 1925 | Outfielder | Brooklyn Superbas/Dodgers/Robins, St. Louis Cardinals, Cincinnati Reds |
| Jimmy Myers | April 6, 1996 | May 5, 1996 | Pitcher | Baltimore Orioles |
| Joseph Myers | October 7, 1905 | October 7, 1905 | Pitcher | Philadelphia Athletics |
| Lynn Myers | July 13, 1938 | October 1, 1939 | Shortstop | St. Louis Cardinals |
| Mike Myers | April 25, 1995 | September 30, 2007 | Pitcher | Florida Marlins, Detroit Tigers, Milwaukee Brewers, Colorado Rockies, Arizona Diamondbacks, Seattle Mariners, Boston Red Sox, New York Yankees, Chicago White Sox |
| Randy Myers | October 6, 1985 | September 25, 1998 | Pitcher | New York Mets, Cincinnati Reds, San Diego Padres, Chicago Cubs, Baltimore Orioles, Toronto Blue Jays |
| Richie Myers | April 21, 1956 | May 2, 1956 | Pinch runner | Chicago Cubs |
| Rod Myers | June 21, 1996 | September 28, 1997 | Outfielder | Kansas City Royals |
| Rodney Myers | April 3, 1996 | June 1, 2004 | Pitcher | Chicago Cubs, San Diego Padres, Los Angeles Dodgers |
| Aaron Myette | September 7, 1999 | September 27, 2004 | Pitcher | Chicago White Sox, Texas Rangers, Cleveland Indians, Cincinnati Reds |
| Bob Myrick | May 28, 1976 | May 18, 1978 | Pitcher | New York Mets |
| Brian Myrow | September 6, 2005 | August 21, 2008 | First baseman | Los Angeles Dodgers, San Diego Padres |
