The 2013 Cavan Senior Football Championship was the 105th edition of Cavan GAA's premier club Gaelic football tournament for senior graded teams in County Cavan, Ireland. The tournament consists of 17 teams, with the winner going on to represent Cavan in the Ulster Senior Club Football Championship.
Mullahoran were the defending champions, but exited the championship to Cavan Gaels at the quarter-final stage.
Ballinagh defeated a fancied Cavan Gaels side in the final to claim their first Senior title.
The following teams have changed division since the 2013 championship season.
Promoted from 2012 Cavan Intermediate Football Championship