Vaterpolo klub Partizan (Serbian Cyrillic: Ватерполо клуб Партизан) is a water polo club from Belgrade, Serbia. VK Partizan is one of the sport clubs in Serbia that are part of sport society Partizan. Partizan's home terrain is the pool which is part of the Sportski centar Voždovac na Banjici complex. The club is supported by Grobari, fans of all sport clubs competing under the name of Partizan Belgrade.
It was founded in 1946 and from 1952 is a member of the First League. Partizan has been the best Serbian water polo club for years and one of the best in Europe. VK Partizan players had a big influence in Yugoslav and Serbian national water polo teams. They helped Serbia and Yugoslavia win many medals at the Olympics, European and World championships.