| All Ireland Champions | |
|---|---|
| Winners | Kilkenny (3rd win) |
| Captain | Mickey Lyng |
| All Ireland Runners-up | |
| Runners-up | Cork |
| Captain | Tom Lyons |
| Provincial Champions | |
| Munster | Cork |
| Leinster | Kilkenny |
| Ulster | Down |
| Connacht | Not Played |
← 1976 1978 → | |
The 1977 All-Ireland Under-21 Hurling Championship was the 14th staging of the All-Ireland Under-21 Hurling Championship since its establishment by the Gaelic Athletic Association in 1964.
Cork were the defending champions.
On 9 October 1977, Kilkenny won the championship following a 2-9 to 1-9 defeat of Cork in the All-Ireland final.[1] This was their third All-Ireland title in the under-21 grade and their first in two championship seasons.