At the 1904 Summer Olympics, a water polo tournament was contested, with three club teams of seven players each. A German team tried to enter, but its entry was refused because their players did not play for the same club.
Brenda Villa is an American accomplished water polo player. She is the most decorated athlete in the world of women’s water polo. Villa was named Female Water Polo Player of the Decade for 2000-2009 by the FINA Aquatics World Magazine. She is one of four female players who competed in water polo at four Olympics; and one of two female athletes who won four Olympic medals in water polo. She is a leading goalscorer in Olympic water polo history, with 31 goals. In 2018, she was inducted into the International Swimming Hall of Fame and the USA Water Polo Hall of Fame.
Water polo at the World Aquatics Championships is an international water polo tournament held every two years as part of the World Aquatics Championships. The reigning champions are Croatia in men's and the United States in women's competition.
The FINA Water Polo World League was an international water polo league organized by FINA, which played annually, typically from winter through to June. League play featured continental tournaments for men and women, from which the top teams emerged to play in the championship tournament where the league champion team is crowned.
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 33 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 Australia national women's water polo team represents Australia in women's international water polo competitions and is controlled by Water Polo Australia. It was one of the most successful women's water polo teams in the world. It is currently organised into the Asia/Oceania regional group.
The FINA Men's Water Polo World Cup is an international water polo tournament, organized by FINA and featuring eight men's national teams. It was established in 1979, initially taking place on odd years. Since 2002 it is held every four years, in the even-year between Olympics.
The Hungary men's national water polo team represents Hungary in international men's water polo competitions and is controlled by the Hungarian Water Polo Association. It is considered the world's top power in the history of water polo, having won 16 Olympic, 12 World Championship, 10 FINA World Cup, eight FINA World League, 26 European Championship and 17 Summer Universiade medals for a total of 91.
The Greece men's national water polo team represents Greece in international men's water polo competitions and it is organized and run by the Hellenic Swimming Federation.
The Spain men's national water polo team represents Spain in men's international water polo competitions and it is controlled by Real Federación Española de Natación.
The Italy national water polo team represents Italy in men's international water polo competitions and is controlled by Federnuoto. The national men's team has the nickname of "Settebello", the term for the seven of diamonds in the Italian card game scopa and a pun on a standard water polo team having seven players.
Margaret Ann Steffens is an American professional water polo player. She won the gold medal with the United States at the 2012, 2016 and 2020 Summer Olympics. At the 2020 Summer Olympics, Steffens set a new Olympic record for the most goals scored by an individual player in women's water polo at the Olympic Games.
Kiley Susan Neushul is an American water polo player and a graduate of Stanford University.
The FINA Water Polo World Rankings is a ranking system for men's and women's national teams in water polo. The teams of the member nations of FINA, water polo's world governing body, are ranked based on their competitions results with the most successful teams being ranked highest.
The 2023 Men's FINA Water Polo World Cup was the 17th edition of the tournament. It ran from 8 March to 2 July 2023. The Super final took place between 30 June and 2 July 2023 in Los Angeles, United States.
The 2023 FINA Women's Water Polo World Cup was the 18th edition of the tournament. It ran from 11 April to 25 June 2023. The Super final took place between 23 and 25 June 2023 in Long Beach, United States.
The 2025 Men's FINA Water Polo World Cup will be the 18th edition of the tournament. It will run from 18 December 2024 to 20 April 2025.
2025 FINA Women's Water Polo World Cup 
United States (5th title)
Netherlands (8 titles)
