Timothy Henry Clark (born 17 December 1975) is a South African professional golfer.

Clark was born in Durban, South Africa. He took up golf at the age of three and was taught to play by his father. He attended North Carolina State University in the United States, where he had a successful college golf career. During this time he won the 1997 Public Links Championship to qualify for his first PGA Tour event, which was the 1998 Masters Tournament.

Clark turned professional later in 1998, and initially played on the second tier U.S. professional tour, which was then known as the Nike Tour, where he won two tournaments in 2000 to gain membership of the main PGA Tour for 2001. His 2001 campaign was cut short by a wrist injury after just three events. He made a comeback in 2002, and had the benefit of a major medical exemption which enabled him to enter enough events to comfortably regain full exemption for 2003. He has not yet won a tournament on the PGA Tour, but he has performed consistently, and has three top three placings at major championships. He has had three European Tour victories. He finished sole second at the 2006 Masters Tournament and sole or tied third at the 2003 PGA Championship and the 2005 U.S. Open.