A water polo tournament was held on the Seine on 11 and 12 August 1900 as part of the 1900 Summer Olympics. Eight teams from four countries, all European, entered the event, although only seven ended up playing. The Osborne Swimming Club of Manchester, England, which has been listed with two rosters that are nearly entirely different, became the first Olympic water polo champions by defeating the Brussels Swimming and Water Polo Club of Belgium. Third place went to the two French-based semi-finalists, Libellule de Paris and Pupilles de Neptune de Lille, the latter of whom entered two teams, but merged them together after the first round.
Water polo has been part of the Summer Olympics program since the second games, in 1900. A women's water polo tournament was introduced for the 2000 Summer Olympics. Hungary has been the most successful country in men's tournament, while the United States is the only team to win multiple times at the women's tournament since its introduction. Italy is the first and only country to win both the men's and women's water polo tournaments.
Final results for the water polo tournament at the 1960 Summer Olympics.
The United States men's national water polo team is the representative for the United States of America in international men's water polo.
The following is the list of squads that took part in the men's water polo tournament at the 1952 Summer Olympics.
The following is the list of squads that took part in the men's water polo tournament at the 1956 Summer Olympics.
The following is the list of squads that took part in the men's water polo tournament at the 1964 Summer Olympics.
Water polo at the 1948 Summer Olympics – Men's team squads
The following are complete rosters for the twelve men's water polo teams that competed in the 1984 Summer Olympics water polo tournament played in August 1984. Each team registered 13 players which are ordered by their respective team numbers. Players marked with † were unused throughout the tournament. Names of coaches are taken from the official Olympics report. Player ages are correct as of 1 August 1984, the starting day of the tournament.
The following are complete squad rosters of all participating teams who competed at the men's water polo tournament at the 1988 Summer Olympics in Seoul.
These are the rosters of all participating teams at the women's water polo tournament at the 2000 Summer Olympics in Sydney. The ten national teams were required to submit squads of 12 players. Additionally, teams could name one alternate player. In the event that a player on the submitted squad list suffered an injury or illness, that player would be able to be replaced by the player in the alternate list.
This article contains lists of various statistics on the United States men's national water polo team at the Summer Olympics. The lists are updated as of March 30, 2020.
This article contains lists of results of the United States men's national water polo team at the Summer Olympics. The lists are updated as of March 30, 2020.
The following is the list of squads that took part in the men's water polo tournament at the 1920 Summer Olympics.
The following is the list of squads that took part in the men's water polo tournament at the 1968 Summer Olympics.
The following is the list of squads that took part in the men's water polo tournament at the 1972 Summer Olympics.
The following is the list of squads that took part in the men's water polo tournament at the 1976 Summer Olympics.
Eger Sport Club 
