| Baron Lake | |
| Location: | Boise County, Idaho |
| Pushpin Map: | Idaho#USA |
| Pushpin Map Caption: | Location in Idaho##Location in the United States |
| Coords: | 44.0817°N -115.0328°W |
| Type: | Glacial |
| Outflow: | Baron Creek to South Fork Payette River |
| Basin Countries: | United States |
| Length: | 0.48miles |
| Width: | 0.3miles |
| Area: | 49acres |
| Elevation: | 8317feet |
Baron Lake is an alpine lake in Boise County, Idaho, United States, located in the Sawtooth Mountains in the Sawtooth National Recreation Area. Sawtooth National Forest trail 101 goes to the lake.
Baron Lake is in the Sawtooth Wilderness, and a wilderness permit can be obtained at a registration box at trailheads or wilderness boundaries. Upper Baron Lake is upstream of Baron Lake while Little Baron Lake is downhill, but not in the same sub-basin. Warbonnet Peak at 10210feet is west of the lake.