Domagoj Duvnjak (born 1 June 1988) is a Croatian professional handball player for THW Kiel and the Croatian national team. Duvnjak is regarded as one of the best handball players of all time alongside fellow Croatian Ivano Balic. He became a member of the Croatia national team at the 2008 Summer Olympics in Beijing, China. He also represented Croatia at the 2012, where Croatia won bronze, and 2016 Olympics. On 26 January 2014, he was named the IHF World Player 2013.