Colton Thomas Smith (born August 14, 1987)[3] is an American mixed martial artist who formerly competed in the Lightweight division of the Ultimate Fighting Championship.

[7] Smith, a Combat infantry soldier, earned airborne, ranger, and sapper tabs and has served tours in Iraq, Syria, Jordan and Afghanistan.

[8][9] While assigned to Echo Company, 4th Battalion, 3rd Infantry Regiment (Old Guard), Smith earned his Expert Infantryman Badge.

Smith trained Brazilian Jiujitsu under Relson Gracie earning his purple belt and developed his MMA skill under Lloyd Irvin and Vanguard Gym in Manassas, Virginia.

[17] Smith next faced Michael Chiesa in a lightweight bout on November 6, 2013 at UFC Fight Night 31.

[19] Smith faced promotional newcomer Carlos Diego Ferreira on June 28, 2014 at UFC Fight Night: Swanson vs.

[21][22] Eight months after his last UFC fight, Smith returned to compete on the local circuit where he picked up two victories in the Rocks Xtreme MMA promotion.

On July 22, 2013, Colton Smith competed in a no gi super fight against Carlos Diego Ferreira at the American Grappling Federation's Southern Regionals.