Thaworn Wiratchant (born 28 December 1966) is a Thai professional golfer who plays on the Asian Tour where he holds the record for most victories, with 18 total wins.
In March 2005, he won the Enjoy Jakarta Standard Chartered Indonesia Open, which is co-sanctioned by the Asian Tour and the European Tour, becoming the second Thai after Thongchai Jaidee to win a European Tour event. He topped the Asian Tour money list in 2005, becoming the first player to win more than half a million U.S. dollars on that tour in a season. He would top the Asian Tour money list again in 2012.
Wiratchant played in a number of events on the European Senior Tour in 2017, receiving an exemption for players aged exactly 50 who had previously won a European Tour event. In his second event on the tour, the WINSTONgolf Senior Open, he finished runner-up behind Phillip Price. He gained entry to the end-of-season MCB Tour Championship by being 23rd in the Order of Merit. Rounds of 66-65-62 gave him an eight strokes win over Mark McNulty. The win lifted him to 9th place on the end of season Order of Merit.