The 2008 Cork Senior Football Championship was the 120th staging of the Cork Senior Football Championship since its establishment by the Cork County Board in 1887. The draw for the opening fixtures took place in December 2007. The championship began on 18 April 2008 and ended on 5 October 2008.
Nemo Rangers entered the championship as the defending champions.
On 5 October 2008, Nemo Rangers won the championship following a 0-13 to 0-05 defeat of Douglas in the final. This was their 17th championship title overall and their fourth title in succession.
James Masters from the Nemo Rangers club was the championship's top scorer with 1-30.
Promoted from the Cork Premier Intermediate Football Championship
Relegated to the Cork Premier Intermediate Football Championship