The 1973 All-Ireland Under-21 Hurling Championship final was a hurling match that was played at Páirc Dáibhín, Carrick-on-Suir on 11 September 1973 to determine the winners of the 1973 All-Ireland Under-21 Hurling Championship, the 8th 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.