| Lyne Lake | |
| Pushpin Map: | Ontario |
| Location: | Thunder Bay District, Ontario |
| Coords: | 48.8694°N -87.3619°W |
| Inflow: | Ross Creek, Whitesand River |
| Outflow: | Whitesand River |
| Basin Countries: | Canada |
| Length: | 4.3km (02.7miles) |
| Width: | 0.9km (00.6miles) |
| Elevation: | 295m (968feet) |
Lyne Lake is a lake in Thunder Bay District, Ontario, Canada. It is about 4300m (14,100feet) long and 900m (3,000feet) wide, and lies at an elevation of 295m (968feet). The primary inflows are the Whitesand River, flowing downstream from Hornblende Lake, as well as Ross Creek, and the outflow is the Whitesand River downstream to the river's mouth at Whitesand Lake.