1978 All-Ireland Minor Football Championship

The 1978 All-Ireland Minor Football Championship was the 47th staging of the All-Ireland Minor Football Championship, the Gaelic Athletic Association's premier inter-county Gaelic football tournament for boys under the age of 18.

Down entered the championship as defending champions, however, they were defeated in the Ulster Championship.

On 24 September 1978, Mayo won the championship following a 4-9 to 3-8 defeat of Dublin in the All-Ireland final. This was their fourth All-Ireland title overall and their first title in seven championship seasons.