| Nunukan Island | |
| Native Name: | Pulau Nunukan |
| Country: | Indonesia |
| Location: | North Kalimantan |
| Archipelago: | Kalimantan |
| Country Largest City: | Nunukan |
| Country Admin Divisions Title: | Province |
| Country Admin Divisions: | North Kalimantan |
| Coordinates: | 4.0594°N 117.6669°W |
| Area Km2: | 226 |
| Population: | 109,773 |
| Density Km2: | 485 |
Nunukan is an island within the Nunukan Regency in North Kalimantan Province of Indonesia. There are four villages on the island: West Nunukan, East Nunukan, North Nunukan, and Sebuku.[1] These have a combined population of 27,874.