Trevor John Immelman (born 16 December 1979) is a South African golfer.

Biography
Immelman was born in Cape Town, South Africa. He took up golf at the age of five. He won the U.S. Amateur Public Links in 1998.

Immelman turned professional in 1999. In 2000 he played mainly on the second tier professional tour in Europe, the Challenge Tour, and finished tenth on the Order of Merit. He became a full member of the European Tour in 2001 and has made the top twenty of the Order of Merit three times. He has three wins on the European Tour, and in 2004 became the first man to successfully defend the South African Open title since Gary Player in the 1970s.

In 2003 Immelman won the WGC-World Cup for South Africa in partnership with Rory Sabbatini. In 2005 he was a member of the losing International Team at the Presidents Cup. He has been playing with increasing frequency on the PGA Tour after receiving a 2 year PGA Tour exemption for 2006 and 2007 on account of this Presidents Cup appearance. In 2006 Immelman won his first PGA Tour event at the Cialis Western Open, a result that moved him into the top 15 in the Official World Golf Rankings. He won the Sunshine Tour Order of Merit in 2002/03.

Trevor married his childhood sweetheart, Carmenita, on December 6th, 2003. He withdrew from the 2006 Open Championship to be with her for the birth of their first child. He finished 2006 in the top 10 of the PGA Tour money list and was named Rookie of the Year.

On December 13, 2007 Immelman withdrew from the South African Airways Open due to severe discomfort around his ribcage area and a problem breathing. He went into surgery the next day and doctors discovered a lesion approximately the size of a golf ball on his diaphragm. It was diagnosed as a calcified fibrosis tumor. After more tests they discovered that it was benign. Immelman will be out four to eight weeks causing him to miss the beginning of the 2008 PGA Tour season.

Professional wins (9)

PGA Tour wins (1)
2006 (1) Cialis Western Open

European Tour wins (3)
2003 South African Open
2004 South African Open , Deutsche Bank - SAP Open TPC of Europe

Challenge Tour wins (1)
2000 Tusker Kenya Open

Sunshine Tour wins (3)
2000 Vodacom Players Championship
2003 Dimension Data Pro-Am
2007 Nedbank Golf Challenge

Other wins (1)
2003 WGC-World Cup (team event, with Rory Sabbatini)

Team appearances

Amateur
Eisenhower Trophy (representing South Africa): 1998

Professional
World Cup (representing South Africa): 2003 (winners), 2004, 2007
Presidents Cup (International Team): 2005, 2007