2023 Donegal Senior Football Championship

The 2023 Donegal Senior Football Championship was the 101st official edition of Donegal GAA's premier Gaelic football tournament for senior graded clubs in County Donegal. 16 teams competed, with the winner representing Donegal in the Ulster Senior Club Football Championship.

Naomh Conaill was defending champion after defeating St Eunan's in the 2022 final. Naomh Conaill again advanced to the 2023 final, where the club defeated Gaoth Dobhair to retain the title.

Cloich Cheann Fhaola's home defeat of Milford marked the first time in twelve years that the club had won a senior championship game. Two weeks after that, the club defeated Four Masters as well.

The competition's top scorer was Oisín Gallen, with 1–56.

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

To S.F.C.
Promoted from 2022 Donegal I.F.C.
 * An Clochán Liath - (I.F.C. Champions)

From S.F.C.
Relegated to 2023 Donegal I.F.C.
 * Réalt na Mara

Quarter-finals
Controversially, there was no seeding used for the draw to determine the quarter-final pairings. This resulted in the clubs that had finished in the top four being drawn to play each other. Another issue was that two of the quarter-finals were played simultaneously, while the choice of neutral venues for this stage of the championship was also problematic, with certain clubs alleging that they had to travel further than their opponent to arrive at the venue.

St Eunan's defeated Aodh Ruadh by 1–13 to 2–5 in Convoy, while Gaoth Dobhair defeated Ard an Rátha by 5–14 to 3–11 in Falcarragh. Seán Mac Cumhaills had a surprise 1–17 to 1–14 victory against Glenswilly at O'Donnell Park (a game in which Oisín Gallen scored 1–9 of his club's total), while Naomh Conaill defeated Cill Chartha by 4–7 to 0–8 at Eamonn Byrne Memorial Park.

Semi-finals
The draw for the semi-finals was held in Killybegs on 1 October 2023, following the conclusion of the Naomh Conaill and Cill Chartha quarter-final at Eamonn Byrne Memorial Park.

Naomh Conaill and St Eunan's were paired together in one semi-final, in what was a repeat of the 2022 final. The clubs had previously met in the Round 2 fixture held in Glenties, with that game ending level (0-9 for each). Naomh Conaill used 19 players in their semi-final, with 11 of those due to be at least 30 years old by the end of 2023.

Gaoth Dobhair and Seán Mac Cumhaills were paired together in the other semi-final. The clubs had previously met in the Round 1 fixture held at Magheragallon, which Gaoth Dobhair won 1–16 to 0–11.

Road to the final
Round 1: Na Cealla Beaga 1–5 Naomh Conaill 3–12
 * Naomh Conaill

Round 2: Naomh Conaill 0–9 St Eunan's 0–9

Round 3: Milford 0–8 Naomh Conaill 1–12

Round 4 Naomh Conaill 0–15 Glenswilly 2–5

Quarter-final: Naomh Conaill 4–7 Cill Chartha 0–9

Semi-final: Naomh Conaill 0–11 St Eunan's 0–9

Round 1: Gaoth Dobhair 1–16 Seán Mac Cumhaills 0–10
 * Gaoth Dobhair

Round 2: Aodh Ruadh 2–8 Gaoth Dobhair 0–9

Round 3: Gaoth Dobhair 1–10 Cloich Cheann Fhaola 0–8

Round 4: An Clochán Liath 0–8 Gaoth Dobhair 0–9

Preliminary quarter-final: An Clochán Liath 1–6 Gaoth Dobhair 0–10

Quarter-final: Ard an Rátha 3–11 Gaoth Dobhair 5–14

Semi-final:

Pre-match
This was the first time the teams had met at this stage of the competition since the 2019 final, when three games were required to determine a winner. While the Naomh Conaill team was much the same, Gaoth Dobhair's team had changed much in that time. Ronan Mac Niallais was in his first year as manager of Gaoth Dobhair.

Naomh Conaill entered the game as the favourites.

Ahead of the game Marty Boyle, Stephen McGrath, Anthony Thompson, Leo McLoone and Eoin Waide were recognised for each making a 100th club championship appearance. McGrath finished the seven games with four clean sheets.

Match details
Naomh Conaill, making a seventh consecutive appearance in the final, won a seventh title. If the two replays required to decide the 2019 title are counted, then the club was playing in its ninth final in seven years.

With a half-time lead of seven points, Naomh Conaill had ten different players scoring in the game. It was the club's fourth title in five years, meaning that their only championship defeat since the 2018 final was against St Eunan's in the 2021 final.

Ulster Senior Club Football Championship
Naomh Conaill advanced to the 2023 Ulster Senior Club Football Championship.

The club was drawn to play Gowna in the quarter-final. Naomh Conaill entered the match as favourite and duly delivered victory at Breffni Park, with Gowna conceding a late free which resulted in a goal scored with nearly the last kick of the match.

Relegation
Milford lost the relegation battle after St Naul's won the final.

Gradam Shéamuis Mhic Géidigh
On 13 December 2023, Oisín Gallen was named as the recipient of the annual Gradam Shéamuis Mhic Géidigh. RTÉ Raidió na Gaeltachta announced the decision. The award was given to Gallen on the same evening.