Matthew John Serra (born June 2, 1974) is an American former professional mixed martial artist, Brazilian Jiu-Jitsu practitioner who competed for the Ultimate Fighting Championship, co-star of Dana White: Lookin' for a Fight, co-host of the official podcast of the UFC, UFC Unfiltered, alongside Jim Norton. Serra defeated Pete Spratt, Shonie Carter and Chris Lytle en route to becoming The Ultimate Fighter 4 Welterweight Tournament Winner. He captured the UFC Welterweight Championship immediately after. Serra also served as the head coach for The Ultimate Fighter 6 reality show opposite Matt Hughes, and he is a member of the UFC Hall of Fame. In Brazilian Jiu-Jitsu, Serra holds a Silver Medal in the ADCC Submission Wrestling World Championship.
Serra began practicing martial arts at an early age, first studying Wing Chun. In the 1990s, he began practicing Brazilian Jiu-Jitsu under Renzo Gracie and obtained his Black belt in May 2000, the first American to do so under Renzo. In addition to competitive bouts with (UFC Hall of Famers) Matt Hughes and B.J. Penn, Serra's biggest accomplishment in mixed martial arts came at UFC 69: Shootout where he defeated Georges St-Pierre in a Knockout of the Night award-winning performance to capture the UFC Welterweight Championship.