Olympiacos F.C. is the most successful football club in Greece with seventy-nine major domestic trophies, since no Greek football club has won any official major international title. Actually, they have won a record forty seven League titles, more than half of the total titles, a record twenty-eight Greek Cups and a record four Greek Super Cups. Olympiacos has won more championships (47) than all the others Greek teams combined (39).
National titles (79) (record)
Greek Championships (47) (record) Super League Greece (1960–present, including Alpha Ethniki 1960–2006) Winners (32) (record): 1966, 1967, 1973, 1974, 1975, 1980, 1981, 1982, 1983, 1987, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2020, 2021, 2022 Runners-up (16): 1961, 1962, 1964, 1968, 1969, 1972, 1977, 1979, 1984, 1989, 1991, 1992, 1995, 2004, 2010, 2019
Panhellenic championship (1928–1959) Winners (15) (record): 1931, 1933, 1934, 1936, 1937, 1938, 1947, 1948, 1951, 1954, 1955, 1956, 1957, 1958, 1959 Runners-up (2): 1949, 1953
National Cups (32) (record) Greek Cup
Winners (28) (record): 1947, 1951, 1952, 1953, 1954, 1957, 1958, 1959, 1960, 1961, 1963, 1965, 1968, 1971, 1973, 1975, 1981, 1990, 1992, 1999, 2005, 2006, 2008, 2009, 2012, 2013, 2015, 2020 Runners-up (14): 1956, 1962, 1966, 1969, 1974, 1976, 1986, 1988, 1993, 2001, 2002, 2004, 2016, 2021
Greek Super Cup
Winners (4): 1980, 1987, 1992, 2007
Greek League Cup
Runners-up (1): 1990
International titles
Balkans Cup
Winners (1): 1963
Regional titles
Greater Greece Cup
Winners (3) (record): 1969, 1972, 1976
Piraeus Regional Championship
Winners (25) (record): 1925, 1926, 1927, 1929 (along with Ethnikos Piraeus F.C.), 1930, 1931, 1934, 1935, 1937, 1938, 1940, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959 Runners-up (1): 1939
Southern Greece championship
Winners (2): 1933, 1934, Runners-up (2): 1939, 1940
Unofficial titles
International Easter Cup
Winners (11) (record): 1928, 1929, 1936, 1943, 1945, 1946, 1949, 1951, 1953, 1959, 1964
International Christmas Cup
Winners (11) (record): 1943, 1948, 1951, 1952, 1953, 1954, 1956, 1959, 1960, 1961, 1962