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Alexander Waske (born 31 March 1975) is a retired tennis player from Germany.
Waske was ranked as high as world No. 16 in doubles, winning four titles. He achieved his career-high singles ranking of world No. 89 in June 2006. In 2010, Waske and his former Davis Cup companion Rainer Schüttler founded the Schüttler Waske Tennis-University, a tennis academy for professional players.
Waske twice beat players in the final qualifying rounds of tournaments who later got into the main draw as lucky losers and caused big historical upsets. In the 2002 Wimbledon final qualifying round at Roehampton, Waske beat George Bastl, before lucky loser Bastl later beat Pete Sampras in the second round of the 2002 Wimbledon tournament, in one of the greatest upsets in tennis history. In the final qualifying round for Indian Wells in 2007, Waske beat Guillermo Cañas, before lucky loser Cañas later beat Roger Federer in the second round of the 2007 Indian Wells tournament, ending Federer's 41–match unbeaten run.
Germany
Mario Ančić 
Julian Knowle
Andrei Pavel
František Čermák 
Leander Paes
Rafael Nadal 
Aisam-ul-Haq Qureshi
