2021 Clare Senior Hurling Championship
| Canon Hamilton Cup 2021 | |
|---|---|
| League | Clare GAA |
| Sport | Hurling |
| Duration | 13 August - 14 November 2021 |
| Number of teams | 17 |
| Sponsor | Pat O’Donnell & Co. |
| Changes From 2020 | |
| Promoted | Scarriff |
| Relegated | N/A |
| Changes For 2022 | |
| Promoted | Smith O'Briens, Killaloe |
| Relegated | N/A |
| County Championship | |
| Winners | Ballyea (3rd Title) |
| Runners-up | Inagh-Kilnamona |
| Senior B Championship | |
| Winners | Clonlara |
The 2021 Clare Senior Hurling Championship was a competition in hurling that was the 126th staging of the Clare Senior Hurling Championship since its establishment by the Clare County Board in 1887.
With Sixmilebridge having won back-to-back titles in 2019 and 2020, they are looking to be the first Clare club team to win a three-in-a-row since Newmarket-on-Fergus in 1973. They defeated near-neighbours O'Callaghan's Mills in the 2020 final who were contesting their first final since 1993 which they ironically also lost to Sixmilebridge.
The 2021 Championship changed from the regular layout in adopting a group stage format. In 2020 a decision was made to not relegate any team from any championship in Clare due to the Coronavirus Pandemic.