| Hvítárvatn | |
| Coords: | 64.6167°N -69°W |
| Outflow: | Hvítá |
| Basin Countries: | Iceland |
| Area: | 30km2 |
| Max-Depth: | 84m (276feet) |
| Elevation: | 420m (1,380feet) |
| Pushpin Map: | Iceland |
| Pushpin Map Alt: | Location of Hvítárvatn in Iceland. |
Hvítárvatn (pronounced as /is/, "white river lake"; also known as Hvítárlón in Icelandic pronounced as /ˈkʰviːtˌaurˌlouːn/, "white river lagoon") is a lake in the Highlands of Iceland and the source of the glacial river Hvítá, Árnessýsla. It is located northeast of Gullfoss waterfall. Its surface is about and its greatest depth is . It lies at an elevation of .[1]
There are some rivers and lakes with the Icelandic adjective hvítur (white) in their name. This is explained by the source of most of Iceland's freshwater, originating from glaciers which make the water light in colour.