| Election Name: | 1985 Donegal County Council election |
| Country: | Ireland |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 1979 Donegal County Council election |
| Previous Year: | 1979 |
| Next Election: | 1991 Donegal County Council election |
| Next Year: | 1991 |
| Seats For Election: | All 29 seats on Donegal County Council |
| Election Date: | 20 June 1985 |
| Party1: | Fianna Fáil |
| Seats1: | 11 |
| Party2: | Fine Gael |
| Seats2: | 9 |
| Seat Change2: | 1 |
| Party3: | Independent Fianna Fáil |
| Seats3: | 5 |
| Seat Change3: | 1 |
| Party4: | Sinn Féin |
| Seats4: | 2 |
| Seat Change4: | 1 |
| Party5: | Workers' Party (Ireland) |
| Seats5: | 1 |
| Map Size: | 300px |
| Council control | |
| Posttitle: | Council control after election |
| Before Election: | Fianna Fáil |
| After Election: | Fianna Fáil |
| Party6: | Donegal Progressive Party |
| Seat Change6: | 1 |
| Seats6: | 1 |
An election to all 29 seats on Donegal County Council took place on 20 June 1985 as part of the 1985 Irish local elections. County Donegal was divided into six local electoral areas (LEAs) to elect councillors for a five-year term of office on the electoral system of proportional representation by means of the single transferable vote (PR-STV). This term was extended for a further year, to 1991.[1]
| Party | Seats | ± | ±% | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11 | 22,259 | 35.94% | 4.14% | ||||||||
| 9 | 1 | 18,347 | 29.62% | 0.23% | |||||||
| 5 | 1 | 10,597 | 17.1% | 0.35% | |||||||
| align=center | 2 | 1 | align=center | 4,290 | 6.93% | align=center | 1.93% | ||||
| align=center | 1 | align=right | 1 | align=center | 1,506 | align=center | 2.46% | align=center | 0.36% | ||
| align=center | 1 | align=right | align=center | 1,352 | align=center | 2.2% | align=center | 1.39% | |||
| align=center | 0 | align=center | 425 | align=center | 0.7% | align=center | — | ||||
| 0 | 1 | align=center | 3,165 | align=center | 5.55% | align=center | 0.82% | ||||
| Totals | align=center | 29 | align=center | 1 | align=center | 57,013 | align=center | 100.00% | align=center | — |