| Fort Monckton | |
|---|---|
| Gosport, England | |
 Aerial view of the fort | |
  Fort Monckton | |
| Type | Battery, later training site |
| Site information | |
| Condition | Complete |
| Site history | |
| Built | 1779-1790 |
| In use | 1790-1956 (as battery) 1956-present (as training site) |
Fort Monckton is a historic military fort on the south-east shoreline of the Gosport peninsula, Hampshire. Built on the ruins of Haselworth Castle to protect Portsmouth Harbour at the start of the American War of Independence, it was rebuilt in the 1880s as a Palmerston fort. It now houses a training centre for the intelligence services.