| Curve Lake 35A | |
| Official Name: | Curve Lake Indian Reserve No. 35A |
| Settlement Type: | Indian reserve |
| Pushpin Map: | Canada Southern Ontario |
| Pushpin Mapsize: | 200 |
| Coordinates: | 44.4706°N -78.4025°W |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | County |
| Subdivision Name2: | Peterborough |
| Subdivision Type3: | First Nation |
| Subdivision Name3: | Curve Lake |
| Area Footnotes: | [2] |
| Area Land Km2: | 2.02 |
Curve Lake 35A is a First Nations reserve on Fox Island, as well as other adjacent islands including Boyd Island, Joe Island, Red Rock Island and Rottenstone Island, in Buckhorn Lake, Ontario, Canada. It is one of three reserves of the Curve Lake First Nation.