2021 Cavan Senior Football Championship
The 2021 Cavan Senior Football Championship was the 112th edition of Cavan GAA's premier Gaelic football tournament for senior graded clubs in County Cavan, Ireland. The tournament consists of 13 teams, with the winner going on to represent Cavan in the Ulster Senior Club Football Championship. The championship began on 2 September 2021.
| Tournament details | |
|---|---|
| County | Cavan |
| Province | Ulster |
| Year | 2021 |
| Trophy | Oliver Plunkett Cup |
| Sponsor | Kiernan's Service Station |
| Date | 2 September – 14 November 2021 |
| Teams | 13 |
| Defending champions | Crosserlough |
| Winners | |
| Champions | Ramor United (5th win) |
| Manager | Ray Cole |
| Captain | Ado Cole |
| Qualify for | Ulster Club SFC |
| Runners-up | |
| Runners-up | Gowna |
| Manager | Fintan Reilly Dermot McCabe |
| Captain | Ryan McGahern |
| Promotion/Relegation | |
| Relegated team(s) | Shercock Castlerahan |
Crosserlough entered the championship as the defending champions, but exited the championship at the group stage.
Gowna and Ramor United contested the final on 7 November, and the game finished as a draw. The next week on 14 November, Ramor came out on top in the replay to secure their 5th senior championship, and their first since 2016.
The replayed final was the first senior men's county final in the country to be refereed by a woman, by Laragh United's Maggie Farrelly.