| Lake of the Woods 35J | |
| Official Name: | Lake of the Woods Indian Reserve No. 35J |
| Settlement Type: | Indian reserve |
| Pushpin Map: | Canada Ontario |
| Pushpin Mapsize: | 200 |
| Coordinates: | 49.2167°N -116°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | District |
| Subdivision Name2: | Kenora |
| Subdivision Type3: | First Nation |
| Subdivision Name3: | Big Grassy |
| Area Footnotes: | [1] |
| Area Land Km2: | 14.09 |
Lake of the Woods 35J is a First Nations reserve in Kenora District, Ontario. It consists of Comegan Island, Sanguishii-aagaamiing Island and Sanguishii-aagaamiising Island in Lake of the Woods, and is one of the reserves of the Big Grassy First Nation.