Friendship Free Library, also known as Pitt Memorial Library, is a historic library building located at Friendship in Allegany County, New York. Constructed of yellow brick in 1912, and designed by Otis Dockstader of Elmira, the building is composed of a five- by two bay, one story main block, with a large four by four bay block to the rear. The building features Arts and Crafts style decorative elements. The entrance is sheltered by a monumental gabled portico supported by four Corinthian columns.

It was listed on the National Register of Historic Places in 2008.