Matthew Stanley Hamill is an American mixed martial artist and wrestler who last competed in the Light Heavyweight division of the UFC. He is a three-time NCAA Division III National Champion in wrestling while attending the Rochester Institute of Technology in Rochester, New York. Hamill also has a silver medal in Greco-Roman Wrestling and a gold medal in Freestyle Wrestling from the 2001 Summer Deaflympics. Although he is technically the only man to defeat the current UFC Light Heavyweight Champion and the current #1 pound-for-pound fighter in the world, Jon Jones, he was being dominated in the fight until Jon Jones was disqualified for using downward elbows to the head.
- Born: October 5, 1976 (age 42), Loveland
- Spouse: Kristi Hamill
- Height: 6′ 1″ (1.85m)