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.
[1] 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.
[2] Notes The clubs taking part in the 2015–16 league are:[1]