| 1990 Limerick Senior Hurling Championship | |
| Champions: | Patrickswell |
| Champions Captain: | David Punch |
| Count: | 12 |
| Runners-Up Captain: | Shane Fitzgibbon |
| Previous Year: | 1989 |
| Previous Tournament: | 1989 Limerick Senior Hurling Championship |
| Next Year: | 1991 |
| Next Tournament: | 1991 Limerick Senior Hurling Championship |
The 1990 Limerick Senior Hurling Championship was the 96th staging of the Limerick Senior Hurling Championship since its establishment by the Limerick County Board.
Ballybrown were the defending champions, however, they were defeated by Patrickswell in first round.
On 21 October 1990, Patrickswell won the championship after a 1–15 to 1–12 defeat of Adare in the final.[1] It was their 12th championship title overall and their first title in two championship seasons.