The water polo competitions at the 2019 SEA Games took place at the New Clark City Aquatics Center, New Clark City, Capas, Tarlac, Philippines.

The next water polo competition was in 2023 because it was not part of the 2021 SEA Games.

The Filipino, Singaporean and Thai teams entered both the men's and women's competition.

Men's teams go through a single round robin tournament, while women's teams go through a double round robin tournament.

*   Host nation (Philippines)The tournament featured 5 countries.