| 1889 Cork Senior Hurling Championship | |
| Champions: | Blackrock |
| Count: | 2 |
| Champions Captain: | Stephen Hayes |
| Runners-Up: | Aghada |
| Previous Year: | 1888 |
| Previous Tournament: | 1888 Cork Senior Hurling Championship |
| Next Year: | 1890 |
| Next Tournament: | 1890 Cork Senior Hurling Championship |
The 1889 Cork Senior Hurling Championship was the third staging of the Cork Senior Hurling Championship since its establishment by the Cork County Board in 1887.
Tower St. were the defending champions.
Blackrock won the championship after receiving a walkover from Aghada in the final.[1] This was their second championship title overall and their first in two championship seasons.
Final