1942 Leinster Minor Football Championship

The 1942 Leinster Minor Football Championship was the fourteenth staging of the provincial Gaelic football competition for boys under the age of 18 by Leinster GAA, since its inception in 1929.

Louth entered the competition as defending champions and went on to retain the trophy for the third year in a row.

Leinster was the only province to crown a champion for 1942. The other three provincial councils abandoned their Minor competitions, due to travel restrictions imposed by the Irish Government during the Second World War.

Similarly, the Leinster Minor Football Championship was suspended in June 1942. In July 1943, Leinster GAA decided to complete the remaining rounds of their 1942 Minor football and Hurling competitions, as only three matches remained to be played.

The title match in Croke Park was between Louth and Kildare. Louth, ahead by 2–6 to 0–2 at half-time, defeated Kildare by nineteen points to claim their sixth provincial title. Unlike in previous years, the winners did not progress to an All-Ireland semi-final, as the other three provincial Championships had been abandoned. The 1942 competition was the last Leinster Minor Football Championship to be held until the end of the Second World War in 1945.