| Kvíslavatn | |
| Location: | Highlands of Iceland |
| Coords: | 64.5644°N -18.5717°W |
| Basin Countries: | Iceland |
| Area: | 20km2 approx |
| Pushpin Map: | Iceland |
| Pushpin Map Alt: | Location of Kvíslavatn in Iceland. |
Kvíslavatn (pronounced as /is/) is a lake in Iceland. The lake is situated in the Highlands of Iceland to the west of Sprengisandur highland road and to the south-east of the glacier Hofsjökull. Its surface area is about 20 km2.