| All Ireland Champions | |
|---|---|
| Winners | Cork (6th win) |
| Captain | Martin O'Doherty |
| All Ireland Runners-up | |
| Runners-up | Wexford |
| Provincial Champions | |
| Munster | Cork |
| Leinster | Wexford |
| Ulster | Antrim |
| Connacht | Not Played |
← 1972 1974 → | |
The 1973 All-Ireland Under-21 Hurling Championship was the 10th staging of the All-Ireland Under-21 Hurling Championship since its establishment by the Gaelic Athletic Association in 1964.
Galway were the defending champions, however, they were defeated by Cork in the All-Ireland semi-final.
On 11 November 1973, Cork won the championship following a 2–10 to 4–2 defeat of Wexford in the All-Ireland final.[1] This was their sixth All-Ireland title in the grade and their fifth in six championship seasons.