| Cat Lake | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location in Ontario |
| Location: | Kenora District, Ontario |
| Coords: | 51.7006°N -91.8481°W |
| Coordinates Footnotes: | [1] |
| Type: | Lake |
| Part Of: | James Bay drainage basin |
| Outflow: | Cat River |
| Basin Countries: | Canada |
Cat Lake is a lake in Kenora District in Northwestern Ontario, Canada. It is the source of the Cat River. The Cat Lake First Nation served by Cat Lake Airport is on the central north shore of the lake.
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