- Source: 1990 Cork Senior Football Championship
- Roy Keane
- Cardiff City F.C.
- Denis Irwin
- George Best
- 1990 Cork Senior Football Championship
- Cork Premier Senior Football Championship
- Cork county football team
- 2024 All-Ireland Senior Football Championship
- List of All-Ireland Senior Football Championship finals
- Cork Premier Senior Hurling Championship
- 2025 All-Ireland Senior Football Championship
- Cork Junior A Football Championship
- Munster Senior Club Football Championship
- Munster Senior Football Championship
The 1990 Cork Senior Football Championship was the 102nd 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 17 December 1989. The championship began on 20 April 1990 and ended on 4 November 1990.
Castlehaven entered the championship as the defending champions, however, they were defeated by Muskerry in the second round.
On 4 November 1990, Duhallow won the championship following an 0-08 to 0-06 defeat of St. Finbarr's in the final. This was their second championship title overall and their first title since 1936.
Colm O'Neill and Dave Barry were the championship's joint top scorers with 0-21.
Team changes
= To Championship
=Promoted from the Cork Intermediate Football Championship
Rockchapel
Results
= First round
== Second round
== Quarter-finals
== Semi-finals
== Final
=Championship statistics
= Top scorers
=Top scorers overall
Top scorers in a single game
= Miscellaneous
=On 22 April 1990, Carrigdhoun recorded their first championship victory since 1968.
Duhallow,then Duhallow West, win the title for the first time since 1936. The gap of 54 years was the longest gap between titles at the time.