| Hornøya | |
| Location: | Finnmark, Norway |
| Coordinates: | 70.3877°N 31.1553°W |
| Area Km2: | 0.4 |
| Length Km: | 900 |
| Width Km: | 700 |
| Elevation M: | 65 |
| Country: | Norway |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Finnmark |
| Country Admin Divisions Title 1: | Municipality |
| Country Admin Divisions 1: | Vardø Municipality |
Hornøya is a small, 0.4km2, uninhabited island in Vardø Municipality in Finnmark county, Norway. It lies in the Barents Sea, just east of the larger island of Vardøya where the town of Vardø is located. Vardø Lighthouse is situated at the highest point of the island, at an elevation of above sea level, and it protects the shipping lanes around the town of Vardø. The island is the easternmost point of Norway proper.[1] [2]
The island is included in the Varangerfjord Important Bird Area (IBA), designated as such by BirdLife International for its support of large numbers of waterbirds, seabirds and waders, either breeding or overwintering.[3]