| Lake of Bays | |
| Location: | Kenora District, Ontario |
| Coords: | 49.9842°N -91.2878°W |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location in Ontario |
| Coordinates Footnotes: | [1] |
| Inflow: | Bays River, Lake of Bays River |
| Outflow: | Lake of Bays River |
| Basin Countries: | Canada |
Lake of Bays is a lake in Kenora District in Northwestern Ontario, Canada in the Hudson Bay drainage basin. The primary inflows are the Bays River at the southeast, and the Lake of Bays River at the northeast; the primary outflow is the Lake of Bays River at the north, which flows via the Sturgeon River, Marchington River, English River, Winnipeg River, and Nelson River to Hudson Bay.
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