The 2011 Cork Senior Football Championship was the 113th staging of the Cork Senior Football Championship since its establishment by the Cork County Board in 1887. The draw for the opening round fixtures took place on 11 December 2010. The championship began on 14 March 2011 and ended on 16 October 2011.
Nemo Rangers entered the championship as the defending champions, however, they were defeated by Avondhu at the quarter-final stage.
On 16 October 2011, University College Cork won the championship following a 1-12 to 0-10 defeat of Castlehaven in the final. This was their 10th championship title overall and their first title since 1999.
Avondhu's Cian O'Riordan was the championship's top scorer with 1-27.
Promoted from the Cork Premier Intermediate Football Championship
Relegated to the Cork Premier Intermediate Football Championship