1991 Railway Cup Hurling Championship
The 1991 Railway Cup Hurling Championship was the 64th staging of the Railway Cup, the Gaelic Athletic Association's premier inter-provincial hurling tournament. The championship began on 10 March 1991 and ended on 7 April 1991.
Connacht were the defending champions.
On 7 April 1991, Connacht won the cup following a 1-13 to 0-12 defeat of Munster in the final. This was their 8th Railway Cup title and their second in succession after winning the last cup title in 1989.Results
Semi-finals
Final;Top scorers overall
;Top scorers in a single game
| Rank | Player | Team | Tally | Total | Opposition |
| 1 | Michael McGrath | Connacht | 1-04 | 7 | Munster |
| 1 | Michael Cleary | Munster | 0-07 | 7 | Connacht |
| 3 | Nicky English | Munster | 1-02 | 5 | Leinster |
| 3 | Tony O'Sullivan | Munster | 0-05 | 5 | Leinster |
| 5 | Cormac Bonnar | Munster | 1-01 | 4 | Leinster |
| 5 | Joe Cooney | Connacht | 1-01 | 4 | Ulster |
