List of places in Arkansas: O
# List of places in Arkansas: O

This list of current cities, towns, unincorporated communities, and other recognized places in the U.S. state of Arkansas whose name begins with the letter O. It also includes information on the number and names of counties in which the place lies, and its lower and upper zip code bounds, if applicable.

## Cities and Towns

| Name of place | Number of counties | Principal county | Lower zip code |
| - | - | - | - |
| Oak Forest | 1 | Lee County | 72360 |
| Oak Forest | 1 | Pulaski County | |
| Oakgrove | 1 | Carroll County | 72660 |
| Oak Grove | 1 | Carroll County | 72660 |
| Oak Grove | 1 | Cleveland County | 71665 |
| Oak Grove | 1 | Crawford County | |
| Oak Grove | 1 | Hot Spring County | 72104 |
| Oak Grove | 1 | Lonoke County | 72007 |
| Oak Grove | 1 | Nevada County | 71858 |
| Oakgrove | 1 | Perry County | 72070 |
| Oak Grove | 1 | Pope County | 72801 |
| Oak Grove | 1 | Pulaski County | 72118 |
| Oak Grove | 1 | Sevier County | 71846 |
| Oak Grove | 1 | Washington County | |
| Oak Grove Heights | 1 | Greene County | 72443 |
| Oakhaven | 1 | Hempstead County | 71801 |
| Oak Hill | 1 | Carroll County | |
| Oakland | 1 | Marion County | 72661 |
| Oakland Heights | 1 | Jefferson County | |
| Oakland Heights | 1 | Pope County | 72801 |
| Oaklawn | 1 | Garland County | 71901 |
| Oak Park | 1 | Jefferson County | 71603 |
| Oak Park | 1 | Sebastian County | |
| Oark | 1 | Johnson County | 72852 |
| Oconee | 1 | Randolph County | 72455 |
| Odell | 1 | Washington County | |
| Oden | 1 | Montgomery County | 71961 |
| O'Donnell Bend | 1 | Mississippi County | 72358 |
| Ogden | 1 | Little River County | 71853 |
| Ogemaw | 1 | Ouachita County | 71764 |
| Oil Trough | 1 | Independence County | 72564 |
| Okay | 1 | Howard County | |
| Okay Junction | 1 | Howard County | |
| O'Kean | 1 | Randolph County | 72449 |
| Okolona | 1 | Clark County | 71962 |
| Ola | 1 | Yell County | 72853 |
| Old Alabam | 1 | Madison County | 72740 |
| Old Austin | 1 | Lonoke County | 72007 |
| Old Bonnerdale | 1 | Garland County | |
| Old Botkinburg | 1 | Van Buren County | |
| Old Buffalo | 1 | Marion County | |
| Old Cove | 1 | Polk County | |
| Old Grand Glaise | 1 | Jackson County | 72020 |
| Old Hickory | 1 | Conway County | 72063 |
| Old Jenny Lind | 1 | Sebastian County | 72906 |
| Old Joe | 1 | Baxter County | 72658 |
| Old Lapile | 1 | Union County | |
| Old Lexington | 1 | Stone County | |
| Old Marble | 1 | Garland County | |
| Old Milo | 1 | Ashley County | 71646 |
| Old Neely | 1 | Yell County | 72834 |
| Old Town | 1 | Lafayette County | |
| Old Union | 1 | Union County | 71730 |
| Old Weona | 1 | Poinsett County | 72472 |
| Olena | 1 | Arkansas County | |
| Olio | 1 | Scott County | |
| Oliver | 1 | Scott County | 72958 |
| Oliver Springs | 1 | Crawford County | 72952 |
| Olmstead | 1 | Pulaski County | 72116 |
| Olvey | 1 | Boone County | 72601 |
| Olyphant | 1 | Jackson County | 72020 |
| Oma | 1 | Hot Spring County | 71964 |
| Omage | 1 | Searcy County | |
| Omaha | 1 | Boone County | 72662 |
| Omega | 1 | Desha County | |
| Omega | 1 | Yell County | 72834 |
| Onda | 1 | Washington County | 72774 |
| O'Neal | 1 | Independence County | |
| One Horse Store | 1 | Arkansas County | 72160 |
| Oneida | 1 | Phillips County | 72369 |
| Onia | 1 | Stone County | 72663 |
| Onyx | 1 | Yell County | 72857 |
| Opal | 1 | Polk County | 71932 |
| Opal | 1 | White County | 72012 |
| Oppelo | 1 | Conway County | 72110 |
| Optimus | 1 | Stone County | 72519 |
| Orion | 1 | Grant County | 72132 |
| Orlando | 1 | Cleveland County | 71660 |
| Orton | 1 | Little River County | |
| Osage | 1 | Carroll County | 72638 |
| Osage Mills | 1 | Benton County | |
| Osceola | 1 | Mississippi County | 72370 |
| Ott | 1 | Fulton County | 65626 |
| Otto | 1 | Faulkner County | 72173 |
| Otwell | 1 | Craighead County | 72401 |
| Ouachita | 1 | Dallas County | 71763 |
| Ouachita College | 1 | Clark County | 71923 |
| Ouita | 1 | Pope County | 72801 |
| Overcup | 1 | Conway County | 72110 |
| Overcup | 1 | Woodruff County | 72101 |
| Owens | 1 | Columbia County | |
| Owensville | 1 | Saline County | 72087 |
| Oxford | 1 | Izard County | 72565 |
| Oxford Ford | 1 | Fulton County | |
| Oxley | 1 | Searcy County | 72645 |
| Ozan | 1 | Hempstead County | 71855 |
| Ozark | 1 | Franklin County | 72949 |
| Ozark Acres | 1 | Sharp County | 72482 |
| Ozark Lithia | 1 | Garland County | 71901 |
| Ozone | 1 | Johnson County | 72854 |

## Townships

| Name of place | Number of counties | Principal county |
| - | - | - |
| Oak Bluff Township | 1 | Clay County |
| Oak Forest Township | 1 | Lee County |
| Oak Grove Township | 1 | Lonoke County |
| Oden Township | 1 | Montgomery County |
| Oil Trough Township | 1 | Independence County |
| O'Kean Township | 1 | Randolph County |
| Old Hickory Township | 1 | Conway County |
| Old River Township | 1 | Jefferson County |
| Oliver Township | 1 | Scott County |
| Oliver Springs Township | 1 | Crawford County |
| Olvey Township | 1 | Boone County |
| Omaha Township | 1 | Boone County |
| Omega Township | 1 | Carroll County |
| Optimus Township | 1 | Stone County |
| Osage Township | 1 | Benton County |
| Osage Township | 1 | Carroll County |
| Osage Township | 1 | Newton County |
| Otter Township | 1 | Saline County |
| Ouachita Township | 1 | Bradley County |
| Ouachita Township | 1 | Hot Spring County |
| Ouachita Township | 1 | Montgomery County |
| Ouachita Township | 1 | Polk County |
| Owen Township | 1 | Dallas County |
| Owen Township | 1 | Lincoln County |
| Owen Township | 1 | Poinsett County |
| Owen Township | 1 | Saline County |
| Oxley Township | 1 | Searcy County |
| Ozan Township | 1 | Hempstead County |
| Ozark Township | 1 | Polk County |
| Ozark Township | 1 | Sharp County |
