Radwell Cottage is a historic cure cottage located at Saranac Lake in the town of Harrietstown, Franklin County, New York, United States. It was built about 1896 and is a 2 1/2-story, wood-frame dwelling with clapboard siding and a gable roof on a native fieldstone foundation. It features a flat-roofed cure porch in an irregular "L" shape that bends outward from the facade. A second cure porch is rectangular and supported on posts. It was listed on the National Register of Historic Places in 1992.