| Type: | Junior |
| Year: | 1991 |
| Munster: | Tipperary |
| Leinster: | Kilkenny |
| Ulster: | Armagh |
| Team: | Tipperary |
| Titles: | 9th |
| Captain: | Gerry O'Brien |
| Team2: | London |
| Previous: | 1990 |
| Next: | 1992 |
The 1991 All-Ireland Junior Hurling Championship was the 70th staging of the All-Ireland Junior Championship since its establishment by the Gaelic Athletic Association in 1912.
Kilkenny entered the championship as the defending champions.[1]
The All-Ireland final was played on 8 September 1991 at the Gaelic Grounds in Limerick, between Tipperary and London, in what was their first meeting in a final since 1933. Tipperary won the match by 4-17 to 1-05 to claim their ninth championship title overall and a first title since 1989.[2] [3]