1990–91 All-Ireland Senior Club Hurling Championship
The 1990–91 All-Ireland Senior Club Hurling Championship was the 21st staging of the All-Ireland Senior Club Hurling Championship, the Gaelic Athletic Association's premier inter-county club hurling tournament. The championship ran from 30 September 1990 to 17 March 1991.
Ballyhale Shamrocks were the defending champions, however, they failed to qualify after being beaten by Fenians in the 1990 Kilkenny SHC quarter-finals. Na Piarsaigh of Cork and Holycross–Ballycahil of Tipperary made their championship debuts.
The All-Ireland final was played at Croke Park in Dublin on 17 March 1991, between Glenmore of Kilkenny and Patrickswell of Limerick, in what was a first championship meeting between the teams. Glenmore won the match by 1–13 to 0–12 to claim a first title.
Glenmore's Ray Heffernan was the championship's [|top scorer] with 0–37.
Championship statistics
Top scorers
| Rank | Player | Club | Tally | Total | Matches | Average |
| 1 | Ray Heffernan | Glenmore | 0-37 | 37 | 5 | 7.40 |
| 2 | Gary Kirby | Patrickswell | 3-19 | 28 | 4 | 7.00 |
| 3 | Joe Elliott | Dunloy | 2-17 | 23 | 3 | 7.66 |
| 4 | Fintan Lawlor | Camross | 1-16 | 19 | 4 | 4.50 |
| 5 | Declan Coote | Éire Óg, Ennis | 2-11 | 17 | 3 | 5.66 |
| 6 | Micheál Conneely | St Rynagh's | 2-10 | 16 | 2 | 8.00 |
| 7 | Michael Connolly | St Gabriel's | 2-09 | 15 | 2 | 7.50 |
| 8 | Christy Heffernan | Glenmore | 3-05 | 14 | 5 | 2.80 |