The men's tournament of Water polo at the 2016 Summer Olympics at Rio de Janeiro, Brazil, began on 6 August and ended on 20 August 2016.

Serbia won the gold medal by defeating Croatia in the final.

Bronze was won by Italy after beating Montenegro.

[4] Teams from twelve nations compete in the tournament and were seeded into two groups for the preliminary round.

Five-time Olympian(s): 2 players Four-time Olympian(s): 7 players Three-time Olympic medalist(s): 5 players Source: Official Results Book (page 100)[21] Source: Official Results Book (page 102)[21] Source: Official Results Book (page 99)[21] The men's all-star team was announced on 20 August 2016.