List of Országos Bajnokság I (men's water polo) clubs
# List of Országos Bajnokság I (men's water polo) clubs

The following is a list of clubs who have played in the OB I water polo league at any time since its formation in 1904. OB I teams playing in the 2014-15 season are highlighted in green.

| No. | Club | City | Number of seasons | Winners | Seasons in the OB I |
| - | - | - | - | - | - |
| 1. | Ferencváros | Budapest | 105 | 21 | 1904, 1905, 1909, 1910, 1911, 1912, 1913, 1918, 1919, 1920, 1921, 1922, 1923, 1924, 1925, 1926, 1927, 1928, 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, 1993–94, 1994–95, 1995–96, 1996–97, 1997–98, 1998–99, 1999–00, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 2. | Újpest | Budapest | 87 | 26 | 1925, 1926, 1927, 1928, 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, 1993–94, 1994–95, 1995–96, 1996–97, 1997–98, 1998–99, 1999–00, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, R, D |
| 3. | Eger | Eger | 79 | 3 | 1929, 1930, 1931, 1932, 1933, 1934, 1935, R, 1938, 1939, 1940, R, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, R, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, R, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, 1993–94, 1994–95, 1995–96, 1996–97, 1997–98, 1998–99, 1999–00, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 4. | Vasas | Budapest | 68 | 18 | 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, R, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, 1993–94, 1994–95, 1995–96, 1996–97, 1997–98, 1998–99, 1999–00, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 5. | BVSC | Budapest | 65 | 7 | 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, R, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, 1993–94, 1994–95, 1995–96, 1996–97, 1997–98, 1998–99, 1999–00, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 5. | Szolnok | Szolnok | 65 | 6 | 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, R, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, 1993–94, 1994–95, 1995–96, 1996–97, 1997–98, 1998–99, 1999–00, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 7. | Honvéd | Budapest | 55 | 6 | 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, R, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, R, 1998–99, 1999–00, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 8. | OSC | Budapest | 50 | 7 | 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, 1993–94, R, 1995–96, 1996–97, 1997–98, 1998–99, R, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 9. | Szentes | Szentes | 46 | 0 | 1948, 1949, R, 1960, R, 1962, R, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, R, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, 1993–94, 1994–95, 1995–96, 1996–97, 1997–98, 1998–99, 1999–00, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 10. | Bp. Spartacus | Budapest | 42 | 0 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1993–94, 1994–95, 1995–96, 1996–97, 1997–98, R, D |
| 11. | MTK | Budapest | 36 | 0 | 1911, 1912, 1917, R, 1926, 1927, 1928, 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, R, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, R, 1960, 1961, R, 1969, R, (BVLSZ) |
| 12. | Tatabányai SC | Tatabánya | 26 | 0 | 1934, R, 1940, 1941, 1942, 1943, 1944, 1945, 1946, R, 1949, 1950, R, 1952, R, 1971, R, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, R, 2001–02, R, (OB I/B) |
| 13. | III. Kerületi TVE | Budapest | 24 | 3 | 1919, 1920, 1921, 1922, 1923, 1924, 1925, 1926, 1927, 1928, 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, R, 1949, R, D |
| 14. | Magyar AC | Budapest | 23 | 2 | 1921, 1922, 1923, 1924, 1925, 1926, 1927, 1928, 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, R, D |
| 15. | Vasas Izzó | Budapest | 22 | 0 | 1953, 1954, R, 1960, 1961, 1962, 1963, R, 1965, 1966, 1967, R, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, R, D |
| 16. | Szeged | Szeged | 21 | 0 | 1993–94, 1994–95, 1995–96, 1996–97, 1997–98, 1998–99, R, 2000–01, 2001–02, 2002–03, 2003–04, 2004–05, 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 17. | Nemzeti SC | Budapest | 20 | 0 | 1919, 1920, 1921, 1922, 1923, 1924, 1925, 1926, 1927, 1928, 1929, R, 1931, R, 1939, 1940, 1941, 1942, R, 1946, 1947, 1948, 1949, R, D |
| 17. | Szegedi EOL SC | Szeged | 20 | 0 | 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, R, D |
| 19. | Műegyetemi AFC | Budapest | 18 | 1 | 1913, 1917, 1918, 1919, 1920, 1921, 1922, 1923, 1924, 1925, R, 1943, 1944, R, 1946, 1947, 1948, R, 1997–98, 1998–99, R, 2000–01, R, (OB I/B) |
| 20. | MMÚE | Budapest | 17 | 4 | 1905, 1906, 1907, 1908, 1909, R, 1924, R, 1927, R, 1930, R, 1933, R, 1937, R, 1942, 1943, 1944, 1945, 1946, 1947, R, D |
| 21. | Csepel SC | Budapest | 16 | 0 | 1943, 1944, 1945, R, 1946, 1947, R, 1951, R, 1954, 1955, 1956, R, 1961, R, 1963, 1964, 1965, 1966, 1967, 1968, R, D |
| 21. | Tungsram SC | Budapest | 16 | 0 | 1958, 1959, R, 1983, 1984, 1984–85, 1985–86, 1986–87, 1987–88, 1988–89, 1989–90, 1990–91, 1991–92, 1992–93, 1993–94, 1994–95, 1995–96, R, D |
| 23. | KSI SE | Budapest | 14 | 0 | 1983, R, 1984–85, R, 1988–89, R, 1991–92, 1992–93, 1993–94, 1994–95, 1995–96, 1996–97, R, 1999–00, 2000–01, 2001–02, R, 2013–14, 2014–15 |
| 24. | Szegedi ÚE | Szeged | 12 | 0 | 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, R, 1944, R, (OB II) |
| 25. | BEAC | Budapest | 11 | 0 | 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, R, 1998–99, 1999–00, R, (BVLSZ) |
| 26. | Pécsi VSK | Pécs | 10 | 0 | 2005–06, 2006–07, 2007–08, 2008–09, 2009–10, 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 27. | BSE | Budapest | 9 | 1 | 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, R, D |
| 28. | BKV Előre SC | Budapest | 8 | 0 | 1929, 1930, 1931, 1932, 1947, R, 1949, 1950, 1951, R, D |
| 28. | Vörös Meteor | Budapest | 8 | 0 | 1952, R, 1954, 1955, R, 1957, 1958, 1959, 1960, 1961, R, D |
| 30. | Hódmezővásárhely | Hódmezővásárhely | 5 | 0 | 1981, R, 1984, R, 1994–95, 1996–97, 1997–98, R, (OB I/B) |
| 30. | Kecskeméti VSC | Kecskemét | 5 | 0 | 1985–86, 1986–87, 1987–88, R, 2001–02, 2002–03, R, (OB I/B) |
| 30. | Debrecen | Debrecen | 5 | 0 | 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 |
| 33. | Kaposvár | Kaposvár | 4 | 0 | 2011–12, 2012–13, 2013–14, 2014–15 |
| 34. | Balatoni ÚE | Siófok | 3 | 2 | 1904, 1905, 1906, R, D |
| 34. | Óbuda TE | Budapest | 3 | 0 | 1905, R, 1928, R, 1942, R, D |
| 34. | Vívó és Atlétikai Club | Budapest | 3 | 0 | 1923, 1924, 1925, R, D |
| 34. | Volán SC | Budapest | 3 | 0 | 1980, R, 1982, 1983, R, D |
| 34. | Ceglédi VSE | Cegléd | 3 | 0 | 1992–93, R, 2002–03, 2003–04, R, (OB I/B) |
| 34. | Neptun VSC | Budapest | 3 | 0 | 2004–05, 2005–06, 2006–07, R, (OB I/B) |
| 40. | Gamma SE | Budafok | 2 | 0 | 1904, R, 1944, R, D |
| 40. | BBTE | Budapest | 2 | 0 | 1932, 1933, R, D |
| 40. | Erzsébeti TC | Pesterzsébet | 2 | 0 | 1942, 1943, R, D |
| 40. | Marosvásárhelyi SE (now in Romania) | Marosvásárhely | 2 | 0 | 1943, 1944, R, D |
| 40. | Tipográfia NyTE | Budapest | 2 | 0 | 1946, 1947, R, D |
| 40. | Szegedi MTE | Szeged | 2 | 0 | 1947, 1948, R, D |
| 40. | Szegedi Dózsa | Szeged | 2 | 0 | 1953, 1954, R, D |
| 40. | Szent István University | Gödöllő | 2 | 0 | 2003–04, 2004–05, R, (OB II) |
| 40. | Fehérvár Póló SE | Székesfehérvár | 2 | 0 | 2007–08, 2008–09, R, (OB II) |
| 49. | Postatakarékpénztár SE | Budapest | 1 | 0 | 1904, D |
| 49. | Szegedi VSE | Szeged | 1 | 0 | 1941, R, (OB I/B) |
| 49. | Közalkalmazottak SE | Budapest | 1 | 0 | 1948, R, D |
| 49. | Angyalföldi Sportiskola DSE | Budapest | 1 | 0 | 2010–11, R, (OB I/B) |
| 49. | Eszterházy Károly College | Eger | 1 | 0 | 2012–13, R, (OB I/B) |
| 49. | YBL Waterpolo Club | Budapest | 1 | 0 | 2013–14, R, (OB I/B) |
| 49. | UVSE | Budapest | 1 | 0 | 2014–15 |
