Unanu, also known as Onari, is an island and municipality situated in the state of Chuuk within the Federated States of Micronesia. It is located in the eastern portion of the Namonuito Atoll at coordinates 8°45'12.4"N 150°20'20.5"E.
The area serves as a recognized administrative division within the island nation, characterized by its geographical position within the Micronesian archipelago.