1981 Cork Junior Football Championship

The 1981 Cork Junior Football Championship was the 83rd staging of the Cork Junior Football Championship since its establishment by Cork County Board in 1895.

The final was played on 29 November 1981 at Páirc Séamus de Barra in Carrigtwohill, between Ballincollig and Aghada, in what was their first ever meeting in the final. Ballincollig won the match by 2–11 to 2–07 to claim their third championship title overall and a first title in 41 years.