| Linesøya | |
| Mapframe-Zoom: | 9 |
| Location: | Trøndelag, Norway |
| Coordinates: | 64.0136°N 9.9168°W |
| Area Km2: | 16.6 |
| Length Km: | 6 |
| Width Km: | 4 |
| Elevation M: | 230 |
| Highest Mount: | Linesfjellet |
| Country: | Norway |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Trøndelag |
| Country Admin Divisions Title 1: | Municipality |
| Country Admin Divisions 1: | Åfjord Municipality |
Linesøya[1] is an island in Åfjord Municipality in Trøndelag county, Norway. It lies about off the coast of the mainland of Åfjord, and southwest of the island of Stokkøya.[2] The 16.6km2 island also lies about north of the smaller island of Lauvøya. The highest point on Linesøya is the 230m (760feet) tall mountain Linesfjellet.[3]
After the completion in 2011 of the Linesøy Bridge between Linesøya and Stokkøya and the Stokkøy Bridge from Stokkøya to the mainland, there has been a ferry-free road to the mainland from Linesøya.