A2 Ethniki Water Polo

A2 Ethniki Water Polo is the 2nd-tier of the Greek Water Polo championship. It is held in three groups of teams and in current season, 14 teams take part. The championship is held in two stages. The two first teams of the 2nd stage promoted to A1 Ethniki. Current champions AEK won the 2019-20 A2 men's water polo season.

Title holders

 * 1986–87 Iraklis
 * 1987–88 NOP
 * 1988–89 NOX
 * 1989–90 NOP
 * 1990–91 OFTH
 * 1991–92 NAO Kerkyras
 * 1992–93 Aris
 * 1993–94 OFTH
 * 1994–95 Panionios
 * 1995–96 Poseidon Ilision
 * 1996–97 Ilysiakos
 * 1997–98 Panathinaikos
 * 1998–99 Aris
 * 1999–00 PAOK
 * 2000–01 Nhreas Chalandriou
 * 2001–02 Panionios
 * 2002–03 NO Chalkidas
 * 2003–04 Glyfada
 * 2004–05 Nhreas Chalandriou
 * 2005–06 Iraklis
 * 2006–07 NEP
 * 2007–08 Iraklis
 * 2008–09 Poseidon Ilision
 * 2009–10 Ethnikos
 * 2010–11 NOX
 * 2011–12 Ilioupoli
 * 2012–13 Glyfada
 * 2013–14 NO Kalamakiou
 * 2014–15 NEP
 * 2015–16 NOP
 * 2016–17 Apollon Smyrnis
 * 2017–18 Peristeri
 * 2018–19 Panathinaikos
 * 2019–20 AEK

Titles by club
Notes
 * Classification of first 12 champion teams by the number of titles and year of achievement.

Current teams
The clubs taking part in the 2015–16 league are: