Christiansø Fortress
| Christiansø festning | |
|---|---|
| Kristiansand, Norway | |
| Site information | |
| Type | Fortress | 
| Controlled by | Norway | 
| Site history | |
| Built | 1635 | 
| In use | 1635-1658, 1848-1871 | 
| Garrison information | |
| Past commanders | Jørgen Bjelke | 
Christiansø Fortress is one of the historic Norwegian fortresses, which commands the western approaches to Flekkerøy harbor, at Kristiansand municipality in Norway.