 Map of Nonouti | |
 | |
  Nonouti  Nonouti  Nonouti  Nonouti | |
| Geography | |
|---|---|
| Location | Pacific Ocean |
| Coordinates | 0°37′S 174°22′E / 0.617°S 174.367°E |
| Archipelago | Gilbert Islands |
| Area | 21.02 km2 (8.12 sq mi) |
| Highest elevation | 3 m (10 ft) |
| Administration | |
| Capital city | Matang |
| Demographics | |
| Population | 2,792 (2020 Census) |
| Pop. density | 135/km2 (350/sq mi) |
| Ethnic groups | I-Kiribati 99.7% |
Nonouti is an atoll and district of Kiribati. The atoll is located in the Southern Gilbert Islands, 38 km north of Tabiteuea, and 250 km south of Tarawa. The atoll is the third largest in the Gilbert Islands and is the island where the Roman Catholic religion was first established in Kiribati, in 1888.