Kolby Kendrall Smith (born December 15, 1984) is a former American football running back and current coach in the National Football League. He was drafted by the Kansas City Chiefs in the fifth round of the 2007 NFL Draft after he played college football at Louisville. Smith also was a member of the Denver Broncos and Jacksonville Jaguars. After his playing career he began coaching in the college ranks and as 2020 he returned to the NFL as a coach with the Miami Dolphins.