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.
Kazimierz Kmiecik is a Polish former professional footballer who spent most of his career with Wisła Kraków, where he played 304 league matches and scored 153 goals. This makes him the best goalscorer in history of the club. He also played for Larissa and won the first Greek cup for the history of the team, in 1985. He is today a legend in Larissa and remains a fan favourite.
Radu Voina is a Romanian former handball player and current head coach.
Milorad Karalić is a Serbian former handball player who competed for Yugoslavia in the 1972 Summer Olympics and in the 1976 Summer Olympics.
Nebojša Popović is a Bosnian Serb former handball player who competed for Yugoslavia in the 1972 Summer Olympics and in the 1976 Summer Olympics.
Zdravko Miljak is a Croatian handball player who competed for Yugoslavia in the 1972 Summer Olympics and in the 1976 Summer Olympics.
Simon Schobel is a former Romanian handball player who competed in the 1972 Summer Olympics.
Vladimír Haber is a Czechoslovak handball player who competed in the 1972 Summer Olympics and in the 1976 Summer Olympics.
Constantin Tudosie is a Romanian former handball player and World Champion who competed in the 1972 Summer Olympics and the 1976 Summer Olympics.
Zygfryd Kuchta is a former Polish handball player who competed in the 1972 Summer Olympics and in the 1976 Summer Olympics.
Jerzy Melcer is a former Polish handball player who competed in the 1972 Summer Olympics and in the 1976 Summer Olympics.
Vasily Petrovich Ilyin was a Soviet handball player.
Yuriy Vasilyevich Lahutyn is a former Soviet/Ukrainian handball player who competed in the 1972 Summer Olympics and in the 1976 Summer Olympics.
Kálmán Markovits was a Hungarian water polo player who competed in the 1952 Summer Olympics, 1956 Summer Olympics, and 1960 Summer Olympics.
Vladimir Viktorovich Semyonov was a Russian water polo player who competed for the Soviet Union in the 1960 Summer Olympics, in the 1964 Summer Olympics, and in the 1968 Summer Olympics. In 1960 he was a member of the Soviet team which won the silver medal. He played five matches. Four years later he won the bronze medal with the Soviet team in the water polo competition at the 1964 Games. He played all six matches and scored four goals. At the 1968 Games he was part of the Soviet team which won again a silver medal in the Olympic water polo tournament. He played all eight matches and scored four goals.
András Bodnár is a former Hungarian water polo player and freestyle swimmer who competed in the 1960 Summer Olympics, 1964 Summer Olympics, 1968 Summer Olympics and 1972 Summer Olympics. He is one of eight male athletes who won four or more Olympic medals in water polo.
Zoltán Dömötör was a Hungarian swimmer and water polo player who competed in the 1960 Summer Olympics, in the 1964 Summer Olympics, and in the 1968 Summer Olympics.
Per Magnus Andersson is a Swedish handball manager and former player who competed in the 1992 Summer Olympics, in the 1996 Summer Olympics and in the 2000 Summer Olympics. He was voted as the best Swedish handballer on four occasions.
Xavier O'Callaghan Ferrer is a Spanish handball player who competed in the 2000 Summer Olympics and in the 2004 Summer Olympics.
Gabriel Sandu was a Romanian football defender.
Romania 
