This is a list of castles in the Isle of Man.
| Name | Type | Date | Location | Condition | Image | Ownership | Notes |
|---|---|---|---|---|---|---|---|
| Bishopscourt | Fortified manor house | 14th–19th centuries | 2 km NE of Kirk Michael on A3 road | Rebuilt |  | Haakon the III | Remains of 14th-century tower incorporated in later house. Former residence of the Bishop of Sodor and Man. [1] |
| Castle Rushen | Keep and bailey | 13th–14th centuries | Castletown | Intact |  | Former residence of the Lords of Man. Converted for use as a prison in the 19th century. Now run as a museum by Manx National Heritage. [2] | |
| Cronk Howe Mooar | Motte and bailey | 11th–12th centuries | Ballafesson, Rushen (near Port Erin) | Earthworks |  | Possible site of timber fortification built by Magnus Barefoot c.1100. [3] | |
| Derby Fort | Artillery fort | 16th–17th centuries | Near Derbyhaven, Malew | Intact |  | Henrician Castle originally built c. 1540, reconditioned during the English Civil War. [4] | |
| Greeba Castle | Castellated house | c.1849 | On A1 road 2 km NW of Crosby, Marown | Intact |  | Home of novelist Hall Caine 1896–1931 | |
| Peel Castle | Castle | 14th–15th centuries | Peel | Ruins |  | Manx National Heritage | Possible site of timber castle built by Magnus Barefoot c.1100; fortifications added until 19th century. [3] Site of ruined cathedral of St German. |
