Stanislas "Stan" Wawrinka (born 28 March 1985) is a Swiss professional tennis player. He reached a career-high Association of Tennis Professionals (ATP) singles ranking of world No.

3 for the first time on 27 January 2014. His career highlights include three Grand Slam titles at the 2014 Australian Open, 2015 French Open and 2016 US Open, where he defeated the world No. 1 player in the final on all three occasions.