Curve Lake is the name of two Indian reserves 14 km north of Peterborough, Ontario. Officially they are known as Curve Lake First Nation No. 35 and Curve Lake No. 35A. Curve Lake First Nation No. 35 has an area of 7.54 km², while Curve Lake No. 35A has an area of 2.02 km².

The Curve Lake First Nation occupies these two reserves and shares a third, the nearby Islands in the Trent Waters, with the Hiawatha and Scugog First Nations. Curve Lake First Nation No. 35 occupies a peninsula between Buckhorn lake, Chemong Lake, and Little Mud Lake. Curve Lake No. 35A is on Fox Island in Buckhorn Lake, and Islands in the Trent Waters is on islands in Buckhorn Lake, Pigeon Lake, and Stony Lake.

The Curve Lake First Nation is Ojibway. The registered Curve Lake population on these three reserves is 694; 1006 registered band members live off the reserve.