Denny Cottage is a historic cure cottage located at Saranac Lake, town of St. Armand in Essex County, New York. It was built about 1910 and is an L-shaped frame building on a fieldstone foundation, with a cobblestone chimney and gable roof. It features an L-shaped screened-in porch with its roof supported by Roman Doric order columns. It was listed on the National Register of Historic Places in 1992.