Water polo at the 1964 Summer Olympics

Water polo at the 1964 Summer Olympics was held at the Yoyogi National Gymnasium in Shibuya, Tokyo. The gymnasium was built in 1961-64 as the first indoor pool for Olympic water polo; it also hosted all swimming and diving events and could accommodate over 13,000 people.

In the water polo tournament two teams from each of the four preliminary groups advanced to two semi-finals, and their four winners competed for the medals. The scores from preliminary rounds were taken into account in the semifinals, and the scores from the semifinals were taken into account in the finals.