Infobox last updated on: May 18, 2009.

Novak Djokovic (help·info) (Serbian: Новак Ђоковић, Novak Ðoković, pronounced , born May 22, 1987 in Belgrade, Serbia) is a Serbian professional tennis player who, as of May 11, 2009, is ranked World No. 4.

He won his first Grand Slam singles title at the 2008 Australian Open. After beating World No. 1 and defending champion Roger Federer in the semifinals, Djokovic defeated Jo-Wilfried Tsonga in the final, becoming the first player representing Serbia to win a Grand Slam singles title and the youngest player in the open era to have reached the semifinals of all four Grand Slam events. He was the runner-up at the 2007 US Open and won the bronze medal in singles representing Serbia at the 2008 Olympic Games. He won the Tennis Masters Cup in 2008 and has won four Masters Series tournaments.