Marcus Philip Kelly (born 16 March 1986) is an English footballer who plays for Forest Green Rovers as a midfielder.
Born in Kettering, Northamptonshire, Kelly began his career playing for Second Division side Rushden & Diamonds. After impressing in the reserve team, he made his debut in a 3–0 home defeat to Bournemouth on 27 March 2004.
Kelly completed his permanent transfer to his hometown club Kettering Town on 7 January 2010.
On 5 July 2012, Kelly signed for Tamworth, along with former Kettering teammate Adam Cunnington and Tommy Wright, with Kelly and Cunnington teaming up with their former manager at Kettering, Marcus Law. Kelly scored his first goal for Tamworth away at Hyde in a 2–1 defeat. He scored a hat-trick in the FA Trophy first round against Lincoln City to ensure Tamworth progressed to the second round.
Kelly signed a one-year-deal at Forest Green Rovers on 17 July 2013, after impressing management while on trial during pre-season – including a 2–0 win over League One side Swindon Town having been recommended to the club by Marcus Law. He made his debut for the club on 10 August 2013 where he scored a hat-trick in an 8–0 win over Hyde. In February 2014, he signed a contract extension keeping him at the club until the summer of 2015.