| Map: | Guinea-Bissau |
| Archipelago: | Bissagos Islands |
| Country: | Guinea-Bissau |
| Area Km2: | 104 |
| Country Admin Divisions Title: | Region |
| Country Admin Divisions: | Bolama |
| Utc Offset1: | +00:00 |
| Timezone1: | Greenwich Mean Time |
| Population As Of: | 2009 |
| Population: | 3,324 |
| Coordinates: | 11.254°N -16.219°W |
Uno is one of the Bissagos Islands off the coast of Guinea-Bissau, in the Atlantic Ocean. The land area is 104km2,[1] with a population of 3,324 (2009).[2]
Uno and the Bissagos Islands are part of the Boloma Bijagós Biosphere Reserve, a UNESCO Biosphere Reserve designated in 1996.[3]
The Uno Sector, part of the Bolama Region, covers Uno and the nearby islands of Eguba, Orango, Unhocomo, Unhocomozinho and Uracane. The sector's population is 6,751 (2009 census).