List of castles in the Outer Hebrides
This is a list of castles in the Outer Hebrides.
List
| Name | Type | Date | Condition | Ownership | Location | Notes | Picture |
| Amhuinnsuidhe Castle | Historic house | 1865 | Occupied | Amhuinnsuidhe Castle Estate | Harris | ||
| Ardvourlie Castle | Historic house | 1863 | Occupied | Private | Harris | ||
| Borve Castle | Tower house | 14th century | Ruined | Benbecula | |||
| Calvay Castle | Uncertain | Ruined | The local community through Stòras Uibhist | Calvay Island, Loch Boisdale, South Uist | Bonnie Prince Charlie hid here in June 1746, while fleeing from the Duke of Cumberland's troops after the Battle of Culloden. | ||
| Kisimul Castle | Tower house | Restored | Private; leased to Historic Scotland | Castlebay, Barra | Open to public | ||
| Lews Castle | Historic house | 19th century | Occupied | Comhairle nan Eilean Siar | Stornoway, Lewis | Category A listed building | |
| Ormacleit Castle | Historic house | Early 18th century | Ruined | South Uist | Burned in 1715 |