Addu City (local administrative code Seenu) is the southernmost atoll of the Maldives.

There are not many islands in this atoll, but many of them are large compared to the average size of islands in the Maldives. Most inhabited islands in Addu are in the western reef and these are Hithadhoo, Maradhoo, Feydhoo, Gan. All these islands are connected with each other through a road or causeway. The islands of Meedhoo, and Hulhudhoo share a large island in the east. The total population of Addu Atoll is just over 28,000.