| 1890 Kilkenny Senior Hurling Championship | |
| Champions: | Bennettsbridge |
| Count: | 1 |
| Runners-Up: | Callan |
| Previous Year: | 1889 |
| Previous Tournament: | 1889 Kilkenny Senior Hurling Championship |
| Next Year: | 1893 |
| Next Tournament: | 1893 Kilkenny Senior Hurling Championship |
The 1890 Kilkenny Senior Hurling Championship was the fourth staging of the Kilkenny Senior Hurling Championship since its establishment by the Kilkenny County Board.
Bennettsbridge won the championship after a 1–04 to 0–01 defeat of Callan in the final.[1]