| Election Name: | 1980 Cumnock and Doon Valley District Council election |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1977 Cumnock and Doon Valley District Council election |
| Previous Year: | 1977 |
| Next Election: | 1984 Cumnock and Doon Valley District Council election |
| Next Year: | 1984 |
| Seats For Election: | All 10 seats to Cumnock and Doon Valley District Council |
| Majority Seats: | 6 |
| Registered: | 33,658 |
| Turnout: | 50.6% |
| Image1: | Lab |
| Party1: | Labour Party (UK) |
| Seats1: | 8 |
| Seat Change1: | 2 |
| Popular Vote1: | 3,828 |
| Percentage1: | 48.2% |
| Swing1: | 8.1 |
| Council Leader | |
| Before Party: | Labour Party (UK) |
| Posttitle: | Council Leader after election |
| After Party: | Labour Party (UK) |
Elections to Cumnock and Doon Valley District Council were held on 1 May 1980, on the same day as the other Scottish local government elections. This was the third election to the district council following the local government reforms in the 1970s.
The election was the last to use the original 10 wards created by the Formation Electoral Arrangements in 1974. Each ward elected one councillor using first-past-the-post voting.[1] Following the Initial Statutory Reviews of Electoral Arrangements in 1981, several wards were changed or abolished.[2]
Labour maintained control of the district council after winning eight of the 10 seats as the party increased their vote share by more than 8% and took nearly half of the popular vote. The other two seats were won by independent candidates. Both the nationalist Scottish Labour Party (SLP) and unionist Conservatives lost all of their seats. For the SLP, which had won two seats in the prior district election, one of their councillors in Patna and Dalrymple resigned the party whip and instead contested the election as an independent while the other councillor, in Old Cumnock Parish, lost to the Labour candidate. The former Conservative seat of Catrine and Sorn was also won by Labour.