| Official Name: | Duncow |
| Country: | Scotland |
| Static Image Name: | Duncow windmill.jpg |
| Static Image Caption: | The ruined windmill above the village. |
| Coordinates: | 55.1344°N -3.6222°W |
| Os Grid Reference: | NX965833 |
| Unitary Scotland: | Dumfries and Galloway |
| Lieutenancy Scotland: | Dumfries |
| Post Town: | DUMFRIES |
| Postcode Area: | DG |
| Postcode District: | DG1 |
| Constituency Scottish Parliament: | Dumfriesshire |
| Constituency Westminster: | Dumfries and Galloway |
Duncow is a small settlement in the civil parish of Kirkmahoe, Dumfries and Galloway, Scotland. Located in the geographical centre of the parish,[1] Duncow was a village in the eighteenth and nineteenth centuries[2] and was formerly its most populous settlement. At the time the First Statistical Account of Scotland was written the village had between 150 and 200 residents. By the time of the Third Statistical Account there were only five houses in the village. It has had a school since at least the time of the New Statistical Account. The current school was opened in 1878 and has a roll of 24.[3] The village post office closed in 1952.
The name Duncow, recorded as Duncol in 1250,[4] is of Celtic origin, representing either Cumbric dīn + coll[5] or Gaelic dùn-choll, both meaning 'fort of hazels'.[6]