| Orrevatnet | |
| Pushpin Map: | Rogaland#Norway |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of the lake |
| Location: | Klepp, Rogaland |
| Coords: | 58.7494°N 5.5383°W |
| Basin Countries: | Norway |
| Area: | 8.04km2 |
| Reference: | NVE |
Orrevatnet is a lake in the municipality of Klepp in Rogaland county, Norway. The 8.04km2 lake is the largest lake in Jæren. The lake sits about above sea level and it is situated along the seashore. The 500mto2500mm (1,600feetto8,200feetm) wide sandy beach strip of land that separates the lake from the sea is home to one of Norway's longest sand beaches, Orrestranda. The village of Orre lies on this strip of land to the southeast of the lake.[1]