The 1974 All-Ireland Under-21 Hurling Championship final was a hurling match that was played to determine the winners of the 1974 All-Ireland Under-21 Hurling Championship, the 11th season of the All-Ireland Under-21 Hurling Championship, a tournament organised by the Gaelic Athletic Association for the champion teams of the four provinces of Ireland. The final was contested by Kilkenny of Leinster and Waterford of Munster, with Kilkenny winning by 3-8 to 3-7. Kilkenny's All-Ireland victory was their first. They became the fifth team since its inception to win the championship.