2017 Donegal Senior Football Championship

The 2017 Donegal Senior Football Championship was the 95th official edition of Donegal GAA's premier Gaelic football tournament for senior graded clubs in County Donegal. Sixteen teams competed, with the winner representing Donegal in the Ulster Senior Club Football Championship.

The championship began with four groups of four, and continued with a knock-out format.

Glenswilly was defending champion after defeating Cill Chartha by a scoreline of 1–10 to 0–12 in the 2016 final.

C. J. Molloy scored a contender for goal of the season against Glenswilly in his club's opening group match, though his club lost. Directly from the second-half throw-in, he soloed through the Glenswilly defence and kicked the ball into the net from a distance of around 25 yards.

This was Burt's debut in the senior grade after winning the 2016 Donegal I.F.C. title.

Team changes
The following teams changed division since the 2016 championship season.

To S.F.C.
Promoted from 2016 Donegal I.F.C.
 * Burt – (I.F.C. Champions)

From S.F.C.
Relegated to 2017 Donegal I.F.C.
 * Glenfin

Format
The 2017 championship took the same format as the 2015 and 2016 championships had, in which there were four groups of four clubs, with the top two clubs qualifying for the quarter-finals. The club finishing bottom in each group contested relegation play-offs to determine which team would be relegated to the 2018 Donegal Intermediate Football Championship.

Group 1
Round 1

Round 2

Round 3

Group 2
Round 1

Round 2

Round 3

Group 3
Round 1

Round 2

Round 3

Group 4
Round 1

Round 2

Round 3

Gradam Shéamuis Mhic Géidigh
Mark McHugh was named as the recipient of the annual Gradam Shéamuis Mhic Géidigh.