2005 Cork Junior A Football Championship

The 2005 Cork Junior A Football Championship was the 107th staging of the Cork Junior A Football Championship since its establishment by Cork County Board in 1895.

The final was played on 27 November 2005 at Páirc Uí Rinn in Cork, between Erin's Own and O'Donovan Rossa, in what was their first ever meeting in the final. Erin's Own won the match by 1–12 to 1–11 to claim their second championship title overall and a first title in 11 years.