2021 Cork Intermediate A Football Championship

The 2021 Cork Intermediate A Football Championship was the 86th staging of the Cork Intermediate A Football Championship since its establishment by the Cork County Board in 1909. The draw for the group stage placings took place on 29 April 2021. The championship began on 4 September 2021 and ended on 5 December 2021.

The final was played on 5 December 2021 at Páirc Uí Chaoimh in Cork, between Iveleary and Mitchelstown, in what was their first ever meeting in a final. Iveleary won the match by 0-20 to 0-07 to claim their first ever championship title.

Iveleary's Chris Óg Jones was the championship's top scorer with 5-38.

To Championship
Promoted from the Cork Junior A Football Championship
 * Iveleary

Relegated from the Cork Premier Intermediate Football Championship
 * Gabriel Rangers

From Championship
Promoted to the Cork Premier Intermediate Football Championship
 * Rockchapel

Relegated to the City Junior A Football Championship
 * Mayfield