| Sandsvatn | |
| Location: | Sandoy, Faroe Islands |
| Coords: | 61.85°N -55°W |
| Pushpin Map: | Faroe Islands |
| Basin Countries: | Denmark |
| Area: | 80ha |
The Sandsvatn is the largest lake on the island of Sandoy and the third largest in the Faroe Islands, measuring 0.8 km2 with a depth of 5 metres. It is situated in a valley between Skopun and Sandur, just north of the latter on Road 30. At the northern end of the lake are the island's school centre and a copse (plantation) which was badly damaged by a 1988 hurricane.
The lake used to be rich in trout, lake trout and salmon. It has been called an "interesting" lake for birdwatching.[1]