The 1987 Cork Senior Football Championship was the 99th 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 26 January 1986. The championship began on 13 April 1986 and ended on 28 September 1986.
St. Finbarr's entered the championship as the defending champions.
On 28 September 1986, Imokilly won the championship following a 2-04 to 0-09 defeat of St. Finbarr's in the final. This was their second championship title overall and their first title since 1984.
Bishopstown's Paul McGrath was the championship's top scorer with 0-24.
Promoted from the Cork Intermediate Football Championship
Regraded to the Cork Intermediate Football Championship