Manhanset Chapel, also known as Mechanics' Hall, is a historic nondenominational chapel at 24 N. Ferry Road in Shelter Island, Suffolk County, New York. It was built in 1890 and moved to its present site in 1924. It was originally located on the grounds of the Manhaset House Hotel. It is a modest, frame Gothic Revival style structure. It consists of a gabled nave; a prominent, square engaged tower; a distinct chancel with a lower gabled roof; and a rear entrance wing.