Clifton is a historic mansion located at Roslyn Harbor in Nassau County, New York.

The main house is a large, 2+1⁄2-story, Flemish Revival building constructed about 1863 and altered twice between 1876 and 1932.

Also on the property are a contributing boathouse and rustic gazebo.

[2] It was listed on the National Register of Historic Places in 1999.

This article about a historic property or district in Nassau County, New York, that is listed on the National Register of Historic Places, is a stub.