| Lou Island | |
| Archipelago: | Admiralty Islands, Bismarck Archipelago |
| Country: | Papua New Guinea |
| Country Admin Divisions Title: | Province |
| Country Admin Divisions: | Manus Province |
| Country Admin Divisions Title 1: | District |
| Country Admin Divisions 1: | Manus District |
| Country Admin Divisions Title 2: | Local-level Government |
| Country Admin Divisions 2: | Balopa Rural LLG |
Lou Island is an island of the Admiralty Islands, part of the Bismarck Archipelago, located in northern Papua New Guinea.
Lou Island has four main villages: Rei, Lako, Baon and Solang.