Newark Valley Municipal Building and Tappan-Spaulding Memorial Library is a historic municipal building and library building located at Newark Valley in Tioga County, New York. The municipal building is a -story brick building with a cut stone foundation and full basement built in 1887 as the Union Free School and Academy. A 2-story, 45-foot rear wing was completed in 1904, and the building was altered for its current use in 1931. The library building was constructed in 1908 and is a small 1-story brick building in a cruciform plan. The roof features red terra cotta tiles and is crowned with a three stage tower with a steep pyramidal roof.It was listed on the National Register of Historic Places in 2006.
