2023 Fermanagh Senior Football Championship

The 2023 Fermanagh Senior Football Championship was the 117th edition of Fermanagh GAA's premier club Gaelic football tournament for senior clubs in County Fermanagh, Northern Ireland. The championship consists of eight teams, with the winner going on to represent Fermanagh in the Ulster Senior Club Football Championship. The championship began on 9 September 2023.

Enniskillen Gaels were the defending champions, but lost to Erne Gaels Belleek in the semi-final.

The final took place on 22 October, between Erne Gaels and Derrygonnelly Harps. Derrygonnelly won the match by 2–8 to 0–9 to win the championship for the 10th time.

Team changes
The following teams have changed division since the 2022 championship season.

To Championship
Promoted from 2022 Intermediate Championship
 * Devenish St Mary's (Intermediate Champions)

From Championship
Relegated to 2022 Intermediate Championship
 * Teemore Shamrocks (Relegation play-off losers)