Lleyton Hewitt (born February 24, 1981), is an Australian professional tennis player, the winner of the 2002 Wimbledon men's singles title, perhaps the most prestigious of the four Grand Slam in tennis tournaments.

Born in Adelaide, South Australia, Hewitt may well have followed in the footsteps of his Australian rules football-playing father. Instead, he became the youngest winner of an ATP tournament when, as an almost unknown youngster, he won the 1998 Adelaide Invitational.

In the next two years he quickly progressed up the world rankings and has been the top-ranked player at season's end for the past two years.

Hewitt's game is based primarily around his superior reaction time, fitness, and court speed - almost a male version of Aranxta Sanchez-Vicario - and, at his best, even more difficult to get around. Such a game would be expected to favour the slow clay courts of the French Open - but so far he has had only limited success on clay.

Hewitt's first grand slam tournament win was at the US Open in 2002, where he defeated 5time champion Pete Sampras in straight sets. He followed this with an impressive victory at Wimbledon in 2002.

Hewitt has a decidedly mixed reputation with tennis fans. His fist-pumping and endless calls of "C'mon!" to himself annoy some fans. More seriously, he was accused of racism when at the 2000 (?) US Open, he reportedly implied that a black linesman was favouring a black opponent, (James Blake). He later apologised to both the linesman and the opponent (who reportedly are quite satisfied). In Australia, he is certainly not feted by the public in the same way that Pat Rafter was.

He is part of the Australian team which won the Davis Cup in 1999 and 2003, and reached the finals in 2000 and 2001. At the age of 22, he has recorded more wins in Davis Cup Singles than any other Australian Player.