The 1973 All-Ireland Minor Hurling Championship was the 43rd staging of the All-Ireland Minor Hurling Championship since its establishment by the Gaelic Athletic Association in 1928.
Kilkenny entered the championship as the defending champions.
The All-Ireland final was played at Croke Park in Dublin on 2 September 1973 between Kilkenny and Galway, in what was their second All-Ireland final meeting overall and a first meeting in 43 years. Kilkenny won the match by 4-04 to 3-07 to claim their ninth All-Ireland title overall and a second title insuccession.