1977–78 Harty Cup

The 1977–78 Harty Cup was the 58th staging of the Harty Cup since its establishment by the Munster Council of the Gaelic Athletic Association in 1918.

St Colman's College were the defending champions.

The Harty Cup final was played on 16 April 1978 at St Ailbe's Park in Emly, between Templemore CBS and St Flannan's College, in what was their first ever meeting in the final. Templemore CBS won the match by 3–05 to 2–06 to claim their first ever Harty Cup title.