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.
The Croatia men's national water polo team represents Croatia in international water polo competitions and is controlled by the Croatian Water Polo Federation. They have won gold medals in the Olympics, World and European Championships, FINA World League and Mediterranean Games, making them one of the most successful men's water polo teams in the world. Overall Croatia won 28 medals at competitions.
The Australian national water polo team represents Australia in men's international water polo competitions and is controlled by Water Polo Australia. The national men's team has the nickname of "The Sharks". It is organised into the Asia/Oceania regional group.
The Germany national water polo team represents Germany in international men's water polo competitions and friendly matches. It is controlled by German Swimming Federation.
The Romania men's national water polo team is the representative for Romania in international men's water polo.
The Russia men's national water polo team is the representative for Russia in international men's water polo. The team is a successor of the Soviet water polo team.
The Slovakia men's national water polo team is the representative for Slovakia in international men's water polo. The governing body is from 2017 Slovak Swimming Federation. It was established in 1993 as the successor state of the Czechoslovakia, so all its results fully belong to it.
Ireland is an international men's water polo team representing the island of Ireland. The Irish Water Polo Association (IWPA) was founded in 1964 and is affiliated to Swim Ireland.
The men's water polo tournament at the 2013 World Aquatics Championships, organised by the FINA, was held in the Piscines Bernat Picornell in Barcelona, Spain from 23 July to 3 August 2013.
Ukraine competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, due to the worldwide COVID-19 pandemic. It was the nation's seventh consecutive appearance at the Summer Olympics in the post-Soviet era with its smallest representation ever.
This article presents the national team appearances in the men's Olympic water polo tournament since the inaugural official edition in 1900.
This article lists various water polo records and statistics in relation to the Yugoslavia men's national water polo team at the Summer Olympics.
This article lists various water polo records and statistics in relation to the Italy men's national water polo team at the Summer Olympics.
This article lists various water polo records and statistics in relation to the Hungary men's national water polo team at the Summer Olympics.
This article lists various water polo records and statistics in relation to the Soviet Union men's national water polo team and the Unified Team men's national water polo team at the Summer Olympics.
The men's water polo tournament at the 2022 World Aquatics Championships was held from 21 June to 3 July 2022 in Budapest, Hungary. This was the 19th time that the men's water polo tournament has been played since the first edition in 1973.
The Ukraine women's national water polo team represents Ukraine in international women's water polo competitions. The team has never qualified for a major international event. In 2023, the team debuted in the World Cup. The team never competed in the World League.
