Janko Tipsarević (Serbian: Јанко Типсаревић) (born 22 June 1984) is a Serbian tennis player. His career high ranking is #13, achieved on 12 September 2011.
In his career, he has won two Futures and nine tournaments from ATP Challenger Series. Tipsarevic has also won the 2001 Australian Open junior title.
Tipsarević has achieved victories against eleven players from the Top 10, three against Tomáš Berdych, two against Andy Roddick and one against Fernando González, Mikhail Youzhny, David Ferrer, James Blake, Gaël Monfils, Andy Murray. He also has wins against former World No.1 players, Carlos Moyá, Marat Safin, Lleyton Hewitt and Juan Carlos Ferrero. His most notable match to date was his Third Round match at the 2008 Australian Open, where he lost to Roger Federer by the score of 6–7(5), 7–6(1), 5–7, 6–1, 10–8.