The 1999 Croke Cup was the 48th staging of the Croke Cup since its establishment by the Gaelic Athletic Association in 1944. The competition ran from 27 March to 18 April 1999.
St Flannan's College were the defending champions.[1][2] A combined Ulster Colleges team, made up of players from various colleges in the province, represented Ulster in the All-Ireland series.
The final was played on 18 April 1999 at Croke Park in Dublin, between St Flannan's College and St Kieran's College, in what was their eighth meeting in the final overall and a first meeting in eight years.[3] St Flannan's College won the match by 2–15 to 2–10 to claim their 13th Croke Cup title overall and a second title in succession.[4][5]