| Queen Adelaide Archipelago | |
| Native Name: | Archipiélago Reina Adelaida |
| Map: | Chile |
| Waterbody: | Pacific Ocean |
| Country: | Chile |
| Country Admin Divisions Title: | Region |
| Country Admin Divisions: | Magallanes Region |
| Country Admin Divisions Title 1: | Province |
| Country Admin Divisions 1: | Última Esperanza Province |
| Country Admin Divisions Title 2: | Commune |
| Country Admin Divisions 2: | Natales |
| Additional Info: | NGA UFI=-898958 |
Queen Adelaide Archipelago (es|Archipiélago Reina Adelaida) is an island group in Zona Austral, the extreme south of Chile. It belongs to the Magallanes y la Antártica Chilena Region.
The major islands in the group are Pacheco Island, Contreras Island, Ramirez Island, Cochrane Island, Juan Guillermos Island and the Rennell Islands (South Rennell Island and North Rennell Island).