| 1945 Limerick Senior Hurling Championship | |
| Champions: | Ahane |
| Count: | 12 |
| Runners-Up: | Granagh-Ballingarry |
| Previous Year: | 1944 |
| Previous Tournament: | 1944 Limerick Senior Hurling Championship |
| Next Year: | 1946 |
| Next Tournament: | 1946 Limerick Senior Hurling Championship |
The 1945 Limerick Senior Hurling Championship was the 51st staging of the Limerick Senior Hurling Championship since its establishment by the Limerick County Board.
Ahane were the defending champions.
On 30 September 1945, Ahane won the championship after a 5–09 to 3–02 defeat of Granagh-Ballingarry in the final.[1] It was their 12th championship title overall and their fourth title in succession.