The 2021 Kerry Senior Hurling Championship was the 120th staging of the Kerry Senior Hurling Championship since its establishment by the Kerry County Board in 1889. The draw for the group stage pairings took place on 15 July 2021. The championship ran from 30 July to 19 September 2021.
Kilmoyley entered the championship as the defending champions.
The final was played on 19 September 2021 at Austin Stack Park in Tralee, between Kilmoyley and St Brendan's, in what was their fifth meeting in the final overall and a first final meeting in six years. Kilmoyley won the match by 1âÂÂ14 to 1âÂÂ11 to claim a record-breaking 26th championship title overall and a second title in succession.
Cian Hussey was the championship's top scorer with 1-48.
Promoted from the Kerry Intermediate Hurling Championship