Water polo at the 2004 Summer Olympics took place at the Olympic Aquatic Centre where women competed for only the second time in the event at the Summer Olympics.
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.
Tamás Kásás is a retired Hungarian water polo player.
Péter Biros is a Hungarian former water polo player, who played on the gold medal squads at the 2000 Summer Olympics, 2004 Summer Olympics and 2008 Summer Olympics, which makes him one of six male athletes who won three Olympic gold medals in water polo. He also competed at the 2012 Summer Olympics.
Elizabeth Jane Weekes is an Australian former water polo player from the gold medal squad of the 2000 Summer Olympics, when women's water polo was contested for the first time at the Olympic Games. She was the goalkeeper of the Australian team, which beat USA 4–3 in the final game in front of a World record attendance of 17,000 spectators. She also attended Fort Street High School.
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 was the first to win both the men's and women's water polo tournaments.
The 1928 Summer Olympics Water Polo event was held between the fourth and eleventh of August. The final results of the tournament follow below.
The women's water polo tournament at the 2004 Summer Olympics was contested between August 16 and August 26 at the Olympic Aquatic Centre in the Athens Olympic Sports Complex. Eight teams qualified for the Games, with Italy defeating the host nation Greece for the gold medal. The United States won the bronze medal.
Gemma Jane Beadsworth is an Australian water polo centre forward. She plays for the Fremantle Marlins in the National Water Polo League. She has represented Australia at three Olympic Games and won bronze medals at the 2008 and 2012 Summer Olympics. She has also won a silver medal at the 2007 World Championship, a gold medal at the 2006 World Cup and a silver medal at the 2010 World Cup.
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.
The women's water polo tournament at the 2000 Summer Olympics in Sydney, Australia, was held from 16 to 23 September 2000, with six teams competing in the debut tournament. The games were held at the Ryde Aquatic Centre and the Sydney Olympic Aquatic Centre. It was the first time in history that women's water polo officially competed at the Summer Olympics.
The men's tournament of Water polo at the 2016 Summer Olympics at Rio de Janeiro, Brazil, began on 6 August and ended on 20 August 2016. Games were held at the Maria Lenk Aquatics Centre and the Olympic Aquatics Stadium.
The women's tournament of Water polo at the 2016 Summer Olympics at Rio de Janeiro, Brazil, began on 9 August and ended on 19 August 2016. Games were held at the Maria Lenk Aquatics Centre and the Olympic Aquatics Stadium.
This article lists various water polo records and statistics in relation to the Australia women'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.
Australia 
Hungary (men)
Russia (men)
United States (women)
Yugoslavia (men)
Spain (men)
Netherlands (women)
