| Election Name: | 1920 Donegal County Council election |
| Country: | United Kingdom |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 1914 Donegal County Council election |
| Previous Year: | 1914 |
| Next Election: | 1925 Donegal County Council election |
| Next Year: | 1925 |
| Seats For Election: | All 20 seats on Donegal County Council |
| Majority Seats: | 11 |
| Election Date: | 26 May 1920 |
| Party1: | Sinn Féin |
| Seats1: | 14 |
| Party2: | Nationalist Party (Ireland) |
| Seats2: | 4 |
| Party3: | Irish Unionist Alliance |
| Seats3: | 2 |
| Map Size: | 300px |
| Council control | |
| Posttitle: | Council control after election |
| After Election: | Sinn Féin |
An election to Donegal County Council took place on Wednesday 26 May 1920 as part of that year's Irish local elections. 45 councillors were elected from 10 electoral divisions by PR-STV voting for a five-year term of office.
Sinn Féin won a majority of the seats, and won majorities in 6 of the 10 voting areas.[1]
The vote was largely characterised by poor turnout, with less than 50% of the electorate voting. Buncrana, Letterkenny, and Milford saw particularly poor turnout. At one station in Rathmullan only 3 of the areas 140 voters turned out. Donegal Town saw better turnout.
The total number of invalid votes for the county stood at 9,193.
At the first sitting of the new council, on Friday 18 June, the council voted to recognise the First Dáil.
Following the election Peter J. Ward (Sinn Féin) was elected chairman. Thomas McFadden (Unionist) was elected vice-chairman.[2]
| Party | valign=top | Seats | valign=top | ± | valign=top | First Pref. votes | valign=top | FPv% | valign=top | ±% |
|---|---|---|---|---|---|---|---|---|---|---|
| 14 | ||||||||||
| 4 | ||||||||||
| 2 | ||||||||||
| 0 | ||||||||||
| Totals | align=right | 20 | align=right | 100% | — |