| Lac du Vernois | |
| Location: | Le Frasnois, Jura department, Franche-Comté |
| Coords: | 46.6472°N 5.8878°W |
| Pushpin Map: | France Franche-Comté |
| Outflow: | underground |
| Basin Countries: | France |
| Area: | 7ha |
| Max-Depth: | 32m (105feet) |
| Elevation: | 738m (2,421feet) |
Lac du Vernois (in French pronounced as /lak dy vɛʁnwa/) is a lake at Le Frasnois, in the Jura department of France.