Dušan Mandić is a Serbian water polo player who plays for Ferencváros. He was a part of the Montenegrin junior water polo team before opting to play for Serbia. With Serbian junior national team he won a gold medal at the 2011 Junior Water Polo World Championship. At the 2012 Summer Olympics, he competed for the Serbia men's national water polo team in the men's event.

The Serbia men's national water polo team represents Serbia in international water polo competitions and is controlled by the Water Polo Association of Serbia. They have won gold medals in the Olympics, World and European Championships, World Cup, FINA World League, Mediterranean Games and Universiade, making them one of the most successful men's water polo teams in the world.