Tuthill-Lapham House, also known as Friendly Hall, is a historic home located at Wading River in Suffolk County, New York. The oldest section is a Federal style three story building with a gambrel roof, built around 1820. Attached is an addition from 1838 and a two-story addition to the west dated 1869. A kitchen wing was added in the 1920s.
It was added to the National Register of Historic Places in 2009.