1909 Kilkenny Senior Hurling Championship

The 1909 Kilkenny Senior Hurling Championship was the 21st staging of the Kilkenny Senior Hurling Championship since its establishment by the Kilkenny County Board.

On 1 May 1910, Erin's Own won the championship after a 1–12 to 1–07 defeat of Mooncoin in the final. This was their second championship title overall and their first in four championship seasons.