1991 All-Ireland Under-21 Hurling Championship
| All Ireland Champions | |
|---|---|
| Winners | Galway (5th win) |
| All Ireland Runners-up | |
| Runners-up | Offaly |
| Provincial Champions | |
| Munster | Tipperary |
| Leinster | Offaly |
| Ulster | Antrim |
| Connacht | Galway |
|
← 1990 1992 → | |
The 1991 All-Ireland Under-21 Hurling Championship was the 28th staging of Ireland's hurling knock-out competition for players aged between 18 and 21. Galway won the championship, beating Offaly 2-17 to 1-9 in the final.
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