| 1909 Cork Senior Hurling Championship | |
| Teams: | 11 |
| Dates: | 9 May 1909 – 25 July 1909 |
| Champions: | Dungourney |
| Champions Captain: | Jamesy Kelleher |
| Count: | 3 |
| Runners-Up: | Sarsfields |
| Runners-Up Captain: | John Foley |
| Previous Year: | 1908 |
| Previous Tournament: | 1908 Cork Senior Hurling Championship |
| Next Year: | 1910 |
| Next Tournament: | 1910 Cork Senior Hurling Championship |
The 1909 Cork Senior Hurling Championship was the 22nd staging of the Cork Senior Hurling Championship since its establishment by the Cork County Board in 1887. The draw for the opening round fixtures took place on 21 April 1909. The championship began on 9 May 1909 and ended on 25 July 1909.
Blackrock were the defending champions, however, they were beaten by Dungourney at the semi-final stage.
On 25 July 1909, Dungourney won the championship following a 6–10 to 1–8 defeat of Sarsfields in the final.[1] This was their third championship title overall and their first title in two championship seasons.