The 1991 All-Ireland Minor Football Championship was the 60th staging of the All-Ireland Minor Football Championship since its establishment by the Gaelic Athletic Association in 1929.
Meath entered the championship as the defending champions, however, they were defeated by Dublin in a Leinster first round replay.
The All-Ireland final was played on 15 September 1991 between Cork and Mayo, in what was their first meeting in a final in six years. Cork won the match by 1-09 to 1-07 to claim their eighth championship title overall and their first title since 1981.
Cork's Podsie O'Mahony was the championship's top scorer with 0-27.