Greek Water Polo Cup
The Greek Water Polo cup is the second most important competition of Greek men's waterpolo and is organised by KOE. It was first held in 1953. Initially started as a competition in memory of Pantelis Psychas, Greek athlete of the swimming. The competition was interrupted from 1959 to 1983. Moreover, it wasn't held in 1993-94 season. From 1998-99 season the Final Four system was instituted. Olympiacos Piraeus have won the most titles, followed by Ethnikos Piraeus.- .....1953 Ethnikos Piraeus
- .....1954 Ethnikos Piraeus
- .....1955 Ethnikos Piraeus
- .....1956 Ethnikos Piraeus
- .....1957 Ethnikos Piraeus
- .....1958 Ethnikos Piraeus
- 1959–83 Not held
- 1983–84 Ethnikos Piraeus
- 1984–85 Ethnikos Piraeus
- 1985–86 Glyfada
- 1986–87 Glyfada
- 1987–88 Ethnikos Piraeus
- 1988–89 Glyfada
- 1989–90 Chios
- 1990–91 Ethnikos Piraeus
- 1991–92 Olympiacos
- 1992–93 Olympiacos
- 1993–94 Not held
- 1994–95 NO Patras
- 1995–96 Vouliagmeni
- 1996–97 Olympiacos
- 1997–98 Olympiacos
- 1998–99 Vouliagmeni
- 1999–00 Ethnikos Piraeus
- 2000–01 Olympiacos
- 2001–02 Olympiacos
- 2002–03 Olympiacos
- 2003–04 Olympiacos
- 2004–05 Ethnikos Piraeus
- 2005–06 Olympiacos
- 2006–07 Olympiacos
- 2007–08 Olympiacos
- 2008–09 Olympiacos
- 2009–10 Olympiacos
- 2010–11 Olympiacos
- 2011–12 Vouliagmeni
- 2012–13 Olympiacos
- 2013–14 Olympiacos
- 2014–15 Olympiacos
- 2015–16 Olympiacos
- 2016–17 Vouliagmeni
- 2017–18 Olympiacos
- 2018–19 Olympiacos
- 2019–20 Olympiacos
Finals
Performance by club
