Thomas Edward Aiken (born 16 July 1983) is a South African professional golfer who plays on the European Tour.
Following a successful amateur career, which included being named the South African Amateur of the Year in 2001, Aiken turned professional at the start of 2002. In 2004, he won three times on the Sunshine Tours Winter Swing. The following year, he topped the money list on the Winter Swing with two further victories.
In 2007, Aiken competed on the Nationwide Tour, but made only three cuts, with a best finish of tied 13th in the Price Cutter Charity Championship. He gained his European Tour card for 2008 through the qualifying school, and went on to finish 131st in the money list, with a best of tied 13th in the Alfred Dunhill Links Championship, his only finish inside the top thirty.