| Lake Uljaste | |
| Pushpin Map: | Estonia |
| Location: | Ida-Viru County, Estonia |
| Basin Countries: | Estonia |
| Area: | 60ha |
| Max-Depth: | 5.6m (18.4feet) |
| Elevation: | 66m (217feet) |
Lake Uljaste (Estonian: Uljaste Järv, Uljastjärv, or Suur Uljaste järv, Russian: Ульясте) is a lake of Estonia near the village of Uljaste, Ida-Viru county.