|Men's Water polo - Water Polo - Tokyo 2020 Summer Olympics
The format for the tournament included a preliminary group stage followed by quarterfinals, classification matches, semifinals and finals. In the preliminary phase the participating teams were split into two pools in a round robin format with each team playing every other team in their group. The top four teams in each pool advanced to the quarterfinals.
Event facts: Men's Water polo competition was held at the Tatsumi Water Polo Centre and 12 teams participated in the event.