The Greek Basket League is the top-level professional basketball league in Greece. It is operated by HEBA (Greek: ΕΣΑΚΕ), and is currently made up of 13 teams, with the lowest-ranked team relegated to the A2 Basket League and replaced by the winner of that level’s play-offs. It takes place from October to June, with teams playing 22 games each during the regular season and the top 8 teams then competing in the playoffs.
The league first held a playoff round in the 1986–87 season. It also allowed the entry of foreign (non-Greek) players for the first time in the 1988–89 season. The league only became a professional competition in the 1992-93 season. Although the championship has been contested 80 times, only nine different clubs have won it so far. The dominant club was Panathinaikos, who won the championship 39 times; followed by Olympiacos with 14, Aris with 10, AEK with 8, Panellini 6, Iraklis and PAOK 2, Near East and University of Athens 1.
1927-28: Iraklis
1928-29: Panellinios
1929-30: Aris
1930-34: not contested
1934-35: Iraklis
1935-36: Near East
1936-37: University of Athens
1937-38: not contested
1938-39: Panellinios
1939-40: Panellinios
1940-45: not played due to World War II
[1945-46:Panathinaikos
1946-47: Panathinaikos
1947-48: not contested
1948-49: Olympiacos
1949-50: Panathinaikos
1950-51: Panathinaikos
1951-52: not contested
1952-53: Panellinios
1953-54: Panathinaikos
1954-55: Panellinios
1955-56: not contested
1956-57: Panellinios
1957-58: AEK
1958-59: PAOK
1959-60: Olympiacos
1960-61: Panathinaikos
1961-62: Panathinaikos
1962-63: AEK
1963-64: AEK
1964-65: AEK
1965-66: AEK
1966-67: Panathinaikos
1967-68: AEK
1968-69: Panathinaikos
1969-70: AEK
1970-71: Panathinaikos
1971-72: Panathinaikos
1972-73: Panathinaikos
1973-74: Panathinaikos
1974-75: Panathinaikos
1975-76: Olympiacos
1976-77: Panathinaikos
1977-78: Olympiacos
1978-79: Aris
1979-80: Panathinaikos
1980-81: Panathinaikos
1981-82: Panathinaikos
1982-83: Aris
1983-84: Panathinaikos
1984-85: Aris
1985-86: Aris
1986-87: Aris
1987-88: Aris
1988-89: Aris
1989-90: Aris
1990-91: Aris
1991-92: PAOK
1992-93: Olympiacos
1993-94: Olympiacos
1994-95: Olympiacos
1995-96: Olympiacos
1996-97: Olympiacos
1997-98: Panathinaikos
1998-99: Panathinaikos
1999-00: Panathinaikos
2000-01: Panathinaikos
2001-02: AEK
2002-03: Panathinaikos
2003-04: Panathinaikos
2004-05: Panathinaikos
2005-06: Panathinaikos
2006-07: Panathinaikos
2007-08: Panathinaikos
2008-09: Panathinaikos
2009-10: Panathinaikos
2010-11: Panathinaikos
2011-12: Olympiacos
2012-13: Panathinaikos
2013-14: Panathinaikos
2014-15: Olympiacos
2015-16: Olympiacos
2016-17: Panathinaikos
2017-18: Panathinaikos
2018-19: Panathinaikos
2019-20: Panathinaikos
2020-21: Panathinaikos
2021-22: Olympiacos
2022-23: Olympiacos
2023-24: Panathinaikos (3-2 at Olympiacos)
