Georges St-Pierre (French pronunciation: ​[ʒɔʁʒ sɛ̃ pjɛʁ]; born May 19, 1981), often referred to as GSP, is a Canadian semi-retired mixed martial artist (MMA) and a former three-time Welterweight Champion of the Ultimate Fighting Championship (UFC) having won the title twice in 2006 and 2008, as well as an Interim title in 2007.