| Tenglo Island | |
| Native Name: | Isla Tenglo |
| Coordinates: | -41.4981°N -72.9727°W |
| Waterbody: | Reloncaví Sound, Pacific Ocean |
| Total Islands: | 1 |
| Country: | Chile |
| Country Admin Divisions Title: | Region |
| Country Admin Divisions: | Los Lagos |
| Country Admin Divisions Title 1: | Province |
| Country Admin Divisions 1: | Llanquihue |
| Country Admin Divisions Title 2: | Commune |
| Country Admin Divisions 2: | Puerto Montt |
| Additional Info: | NGA UFI -902592 |
Tenglo Island is separated from Puerto Montt by the Tenglo Channel in Reloncaví Sound, Los Lagos Region, Chile.