The 2025 Down Senior Football Championship is the 117th official edition of Down GAA's premier Gaelic football tournament for senior clubs in County Down. 16 teams compete, with the winning team representing Down in the Ulster Senior Club Football Championship. The tournament operates a double elimination format for the opening two rounds of the championship, with the winners and early round losers rejoining at the quarter-final stage.
Kilcoo came into the competition as the defending champion.
As part of a radical overhaul to Gaelic football, there were seven new or amended core rules introduced at the beginning of the 2025 season, which were new to this year's competition. These rules were:
A new rule was also introduced where any dissent by a player on an opposing free kick would see the free kick moved forward by 50m.
The following teams have changed division since the 2024 championship season.
Promoted from 2024 Down I.F.C.
Relegated to 2025 Down I.F.C.
The following teams take part in the 2025 edition of the Down Senior Football Championship.
Bold denotes a team still active in the competition
The 16 participating teams were placed into an open draw. The winning teams advance to Round 2A, while losing sides proceed to Round 2B.
Round 2A features the eight winning teams from Round 1, with an open draw to determine the fixtures. The winning teams progress directly to the quarter-finals, with the losing teams proceeding to Round 3.
Round 2B sees the eight losing teams from Round 1 compete for a place in Round 3. The losing teams from this round will be eliminated from the competition.
The 4 losers of Round 2B play each other in the Relegation Semi-finals. The 2 winners will secure their Senior status for 2026, while the 2 losers will face-off in the Relegation Final.
The winner of the Relegation Final will maintain their Senior status into 2026, while the loser will be relegated to the 2026 Down I.F.C.
Liatroim Fontenoys relegated to 2026 Down Intermediate Football Championship
Round 3 is a supplementary round for teams to have a second chance at reaching the quarter-finals. This round features teams that have lost once so far in this year's competition, either winning in Round 1 and losing in Round 2A, or losing in Round 1 but winning their Round 2B fixture. The losing teams in this round are eliminated from this year's competition.
This round is seeded, meaning that in each fixture a Round 2A losing team will face a Round 2B winning team.
Game was originally scheduled for 14 September in St John's, Drumnaquoile, but was postponed due to a waterlogged pitch.
The quarter-finals see the two brackets rejoin, with the earlier Round 2A winners facing a Round 3 winner for a semi-final spot.
The semi-finals will see the four winning sides face off for a place in this year's final. This round is an open draw from the four quarter-final winners.
Game was originally scheduled for 3 October. but was postponed due to the effects of Storm Amy.
The final will be played between the two semi-final winning teams, and will take place at Páirc Esler, Newry.