Ken Rosewall, born in Sydney, November 2, 1934, is a former Australian tennis player.

Naturally left-handed, from a young age he was set on playing tennis right-handed. Famous for his backhand stroke, he had an exceptionally long career at the highest levels, confirming himself among the top 10 players in the world rankings from 1952 to 1975. He won every Grand Slam tournament except Wimbledon, despite playing 4 finals (1954 , 1956, 1970, 1974).

In 1963 he was author of the Grand Slam of the professional tennis championships and the only one to simultaneously hold Pro Grand Slam titles on three different surfaces: in that category of tournaments he was the absolute record holder with 15 titles won. Also in doubles he won 9 slams achieving a 'career double grand slam'. He also holds the record for matches played and won in tennis history.

He was inducted into the International Tennis Hall of Fame in 1980. For the results and victories achieved among amateurs and professionals in over 30 years of activity, Rosewall is considered one of the best tennis players ever.