2020 Donegal Senior Football Championship
The 2020 Donegal Senior Football Championship was the 98th 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. Generally, the championship begins with four groups of four and continues with a knock-out format. However, this year, due to the COVID-19 pandemic, the format was changed.
| Season | 2020 |
|---|---|
| Champions | Naomh Conaill (5th title) |
| Relegated | ??? |
| Winning captain | Ciarán Thompson |
| Man of the Match | Ciarán Thompson |
| Winning manager | Martin Regan |
| Matches played | 42 |
← 2019 2021 → | |
Naomh Conaill was defending champion after defeating Gaoth Dobhair by a scoreline of 0–8 to 0–7, after a second replay in the 2019 final.
The 2020 competition progressed as far as the final but this match was twice postponed due to issues arising from the impact of the COVID-19 pandemic on Gaelic games. It was eventually played on Saturday, 14 August 2021, with Naomh Conaill winning a fifth title.
This was St Naul's return to the senior grade (for the first time since 2012), after a seven-year exodus concluded with the club winning the 2019 Donegal Intermediate Football Championship. The club defeated Cloich Cheann Fhaola by 1–10 to 0–10 in the IFC final.