| Dunagoil | |
| Map Type: | Scotland_Argyll_and_Bute |
| Relief: | 1 |
| Coordinates: | 55.734°N -5.051°W |
| Map Dot Label: | Dunagoil |
| Location: | Isle of Bute |
| Region: | Scotland |
| Type: | hill fort |
| Length: | 300 feet |
| Width: | 75 feet |
| Material: | wood and stone |
| Epochs: | Iron Age |
Dunagoil is a vitrified fort or dun on the Isle of Bute – an Iron Age hill fort whose ramparts have been melted by intense heat. It stands on a volcanic headland and gives its name to the bay that it overlooks. Like other places, such as Donegal, its name is from the Gaelic dún na gall – fort of the foreigners.