2020 Kilkenny Senior Hurling Championship

The 2020 Kilkenny Senior Hurling Championship was the 126th staging of the Kilkenny Senior Hurling Championship since its establishment by the Kilkenny County Board in 1887. The championship began on 29 August 2020 and ended on 27 September 2020.

Ballyhale Shamrocks were the defending champions. Danesfort were relegated after suffering a 1–15 to 1–13 defeat by Graigue-Ballycallan in a playoff.

On 27 September 2020, Ballyhale Shamrocks won the championship after a 5–19 to 1–10 defeat of Dicksboro in the final at UPMC Nowlan Park. It was their 18th championship title overall and their third title in succession.

To Championship
Promoted from the Kilkenny Intermediate Hurling Championship
 * Tullaroan

From Championship
Relegated to the Kilkenny Intermediate Hurling Championship
 * St. Patrick's Ballyragget