| Bobs Lake | |
| Location: | Cochrane, Ontario, Canada |
| Coordinates: | 48.4956°N -81.1475°W |
| Type: | Lake |
| Length: | 1500m (4,900feet) |
| Width: | 370m (1,210feet) |
| Elevation: | 281m (922feet) |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of Bobs Lake in Ontario. |
Bob's Lake is a lake in the James Bay and Abitibi River drainage basins in the city of Timmins, Cochrane District in northeastern Ontario, Canada.
The lake is about 1500m (4,900feet) long and 370m (1,210feet) wide, lies at an elevation of 281m (922feet), and is located in the community of Porcupine on Ontario Highway 101. The primary inflow is an unnamed creek at the northeast, and the primary outflow is Bob's Creek at the southwest, which flows to Porcupine Lake and via the Porcupine River and the Frederick House River to the Abitibi River.
A second Bobs Lake in Cochrane District, with a similarly named primary outflow Bobs Creek, and which is also in the Abitibi River drainage basin, is Bobs Lake (Shallow River) (without the apostrophe) and is located 63km (39miles) to the northeast.