| Big Island 37 | |
| Official Name: | Big Island Indian Reserve No. 37 |
| Settlement Type: | Indian reserve |
| Pushpin Map: | Canada Ontario |
| Pushpin Mapsize: | 200 |
| Coordinates: | 49.1667°N -140°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | District |
| Subdivision Name2: | Rainy River |
| Subdivision Type3: | First Nation |
| Subdivision Name3: | Animakee Wa Zhing 37 |
| Area Footnotes: | [1] |
| Area Land Km2: | 7.9 |
Big Island 37 is a First Nations reserve on Big Island in Lake of the Woods, in Ontario, Canada. It is one of the reserves of the Animakee Wa Zhing 37 First Nation.