The 2012 Cork Senior Football Championship was the 114th staging of the Cork Senior Football Championship since its establishment by the Cork County Board in 1887. The championship began on 20 March 2012 and ended on 28 October 2012.
University College Cork entered the championship as the defending champions, however, they were defeated by Duhallow.
On 28 October 2012, Castlehaven won the championship following a 1-07 to 0-09 defeat of Duhallow in the final. This was their 4th championship title overall and their first title since 2003.
Duhallow's Donnacha O'Connor was the championship's top scorer with 0-48.
Promoted from the Cork Premier Intermediate Football Championship
Relegated to the Cork Premier Intermediate Football Championship