Pajonsuk (born Angkhan ChomphuphuangThai: อังคาร ชมพูพวง, 20 January 1980 in Lopburi, Thailand) is a Thai middleweight Muay Thai-kickboxer fighting out of Superpro Samui in Koh Samui, Thailand. He is a former Lumpinee Stadium and three-time world Muay Thai champion. As well as fighting in Muay Thai and kickboxing, Pajonsuk has also pursued an amateur boxing career, most recently participating in the 2008 Olympic Games representing Thailand.