Colton Smith (born August 14, 1987) is an American mixed martial artist and Combatives and Brazilian Jiu-Jitsu black belt under Matt Larsen and who formerly competed in the Lightweight division of the Ultimate Fighting Championship. Smith is best known for competing on, and winning The Ultimate Fighter: Team Carwin vs. Team Nelson. His dominant wrestling style allowed him to defeat all five fighters he faced in the tournament by decision. He is currently an active member of the U.S. Army.