| Kvamsøy | |
| Pushpin Map: | Vestland#Norway |
| Pushpin Label: | Kvamsøy |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location of the island |
| Location: | Vestland, Norway |
| Coordinates: | 61.1276°N 6.4832°W |
| Area Ha: | 80 |
| Length M: | 475 |
| Width M: | 230 |
| Coastline Km: | 1.3 |
| Elevation M: | 16 |
| Country: | Norway |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Vestland |
| Country Admin Divisions Title 1: | Municipality |
| Country Admin Divisions 1: | Sogndal Municipality |
Kvamsøy is a small island in Sogndal Municipality in Vestland county, Norway. The 80ha island lies in the Sognefjorden, just off the coast of the village of Kvamme. The island lies about off the coast. The village of Vikøyri lies about to the southeast and the village of Balestrand lies about to the north.
The island is notable because it is home to the historic Kvamsøy Church which was built around the year 1300. It was the centre of the Kvamsøy parish for hundreds of years, serving the southern part of the present-day Balestrand municipality. The church was used until 1903 when it was closed down and replaced by the newly built Sæle Church, a short distance away on the mainland.[1]