The 2023 Ulster Senior Club Football Championship is the 55th instalment of the annual competition organised by Ulster GAA. It is one of the four provincial competitions of the 2023–24 All-Ireland Senior Club Football Championship and is played in a straight knockout format. The championship draw was made on 7 September 2023.

Derry's Glen entered the championship as the defending champions, and reached the final for the second year in a row, where they played Monaghan champions Scotstown. Glen won the match by 0–13 to 0–11 to win their second Ulster title.

Teams The Ulster championship is contested by the winners of the nine county championships in the Irish province of Ulster. Ulster comprises the six counties of Northern Ireland, as well as Cavan, Donegal and Monaghan in the Republic of Ireland.

CountyTeamMost recent successProvincialCounty Antrim Erin's Own, Cargin 2022 Armagh Crossmaglen Rangers 2015 2022 Cavan Gowna 2022 Derry Watty Graham's, Glen 2022 2022 Donegal Naomh Conaill 2022 Down Kilcoo 2021 2022 Fermanagh Derrygonnelly Harps 2021 Monaghan Scotstown 1989 2021 Tyrone Trillick St Macartan's 2019

Bracket

Preliminary round

Quarter-finals

Semi-finals

Final

References