The 2015 All-Ireland Under-21 Hurling Championship was the 52nd staging of the All-Ireland championship for since its establishment by the Gaelic Athletic Association in 1964.

The draws for the various 2015 fixtures took place in October 2014.

Clare were the defending champions, however, they were defeated in the provincial decider.

[3] Limerick won the title following a 0-26 to 1-7 defeat of Wexford in the final.

[4][5] These matches were broadcast live on television in Ireland by TG4: