 | This article needs additional citations for verification. (April 2020) |
 View over tropical dry forest to coastal strand vegetation on the island | |
  Jaco Island Location in East Timor | |
| Geography | |
|---|---|
| Location | Banda Sea (Wetar Strait), Timor Sea |
| Coordinates | 8°25′30″S 127°19′30″E / 8.425°S 127.325°E |
| Archipelago | Timor Archipelago (within the Lesser Sunda Islands) |
| Area | 8 km2 (3.1 sq mi) |
| Length | 4,2 km (26.1 mi) |
| Highest elevation | 100 m (300 ft) |
| Administration | |
| Demographics | |
| Population | 0 (2024) |
Jaco Island (Portuguese: Ilha de Jaco, Tetum: Illa Jako, Fataluku: Totina or Tontina) is an uninhabited island in East Timor, a country occupying the eastern end of the island of Timor in the Lesser Sunda Islands in Southeast Asia. It lies off the eastern tip with Cape Cutcha of the island of Timor (Aldeia Pitileti, Suco Tutuala, administrative post Tutuala, municipality Lautém).