Vaterpolo klub Partizan (Serbian Cyrillic: Ватерполо клуб Партизан) is a professional water polo club based in Belgrade, Serbia.

Partizan's home terrain is the pool which is part of the Sportski centar Voždovac on Banjica complex.

With seven European champion titles (the last in 2011 against Pro Recco), VK Partizan is the second most successful European team in water polo history along with Mladost, and behind Pro Recco with ten titles.

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.