| Type | Name | Size | Coordinates | Status | Links | |
|---|---|---|---|---|---|---|
| Restricted Area | Diego Garcia | WDPA | ||||
| Strict Nature Reserve | Cow Island | WDPA | ||||
| Danger Island | WDPA | |||||
| Eastern Peros Banhos Atoll | WDPA | |||||
| Nelson Island | WDPA | |||||
| Three Brothers and Resurgent Islands | WDPA | |||||
| Ramsar Wetland | Chagos Banks | 4,000,000 | 06o00'00"S | 72o00'00"E | Proposed | JNCC |
| Diego Garcia | 35,424.05 | 07o19'00"S | 72o28'00"E | Designated | Ramsar sites database JNCC | |