Water polo competitions at the 2023 Pan American Games was held from October 30 to November 4.

The venue for the competition was the Aquatic Center, in Santiago, Chile.

[1][2] A total of eight men's and eight women's teams (each consisting of up to 12 athletes) competed in each tournament.

Canada and the United States automatically qualified in each tournament, along with the top two teams at the 2022 South American Games and the top three teams at the 2023 Central American and Caribbean Games.

[6] Some teams used their alternate athletes in matches and are not counted in the total.