| Bay of Bengal(expression, territory, area, province, zone) |
| Gulf of Aden(expression, territory, area, ecoregion, zone) |
| Maldives(noun, territory, area, ecoregion, zone) |
| Mascarene Islands(expression, territory, area, ecoregion, zone) |
| Persian Gulf(expression, territory, area, ecoregion, zone) |
| Seychelles(noun, territory, area, ecoregion, zone) |
| Africa's east coast(expression, territory, area, zone) |
| Andaman(noun, province, marine, realm) |
| Andaman Sea(expression, territory, area, zone) |
| Andaman Sea Coral Coast(expression, area, ecoregion, marine) |
| Andaman and Nicobar Islands(expression, area, ecoregion, marine) |
| Arabian Gulf(expression, area, ecoregion, marine) |
| Arabian Sea(expression, territory, area, zone) |
| Bight of SofalaCoast(expression, area, ecoregion, marine) |
| Bight of Swamp Coast(expression, area, ecoregion, marine) |
| Cargados CarajosIsland(expression, area, ecoregion, marine) |
| Cargados Tromelin Island(expression, area, ecoregion, marine) |
| Central Indian Ocean Islands(expression, province, marine, realm) |
| Central Somali Coast(expression, area, ecoregion, marine) |
| Chagos(noun, area, ecoregion, marine) |