Tobi is an island in the Palauan state of Hatohobei. With a population of about 30, it holds all of the state's people, with the exception of a weather base on another island. Most of the inhabitants live on the island's west side and speak Tobian. Tobi, Helen Reef (Hotsarihie), Transit Reef (Pieraurou), and the islands in the state of Sonsorol make up The Republic of Palau's Southwest Islands. Tobi is 1.6 km long and 0.8 km wide, and has an area of about 0.85 square kilometres (0.33 sq mi).
Coordinates: 03°00′22″N 131°07′26″E / 3.00611°N 131.12389°E