The 1980 Cork Senior Football Championship was the 92nd staging of the Cork Senior Football Championship since its establishment by the Cork County Board in 1887. The championship began on 5 April 1980 and ended on 14 September 1980.
St. Finbarr's entered the championship as the defending champions.
On 14 September 1980, St. Finbarr's won the championship following a 3-08 to 1-09 defeat of University College Cork in the final. This was their sixth championship title overall and their second title in succession.
Jamesie O'Callaghan of the St. Finbarr's club was the championship's top scorer with 7-28.
Promoted from the Cork Intermediate Football Championship