The 1984 Croke Cup was the 33rd staging of the Croke Cup since its establishment by the Gaelic Athletic Association in 1944. The competition ran from 15 April to 6 May 1984.
St Flannan's College were the defending champions, however, they were beaten by the North Monastery in the Harty Cup quarter-final.
The final was played on 6 May 1984 at Croke Park in Dublin, between St Finbarr's College and St Kieran's College, in what was their fifth meeting in the final and a first meeting in 10 years. St Finbarr's College won the match by 1âÂÂ15 to 0âÂÂ08 to claim their fifth Croke Cup title overall and a first title in 10 years. It would be their last Croke Cup title.
Liam Egan was the top scorer with 1-10.