| Lundøya | |
| Location: | Nordland, Norway |
| Coordinates: | 67.9864°N 15.2023°W |
| Area Km2: | 26.7 |
| Length Km: | 9 |
| Width Km: | 5 |
| Elevation M: | 803 |
| Highest Mount: | Lundtinden |
| Country: | Norway |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Nordland |
| Country Admin Divisions Title 1: | Municipality |
| Country Admin Divisions 1: | Steigen Municipality |
| Population: | 0 |
| Population As Of: | since 1970s |
Lundøya[1] is an island in Steigen Municipality in Nordland county, Norway. The island lies at the entrance to the Sagfjorden between the island of Engeløya in Steigen and the village of Skutvika on the mainland in Hamarøy Municipality. The island has an area of and its highest point is the 803m (2,635feet) tall mountain Lundtinden. Lundøya is now uninhabited, but has previously had settlements on it until the 1970s.[2]