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 2+1⁄2-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.

[2] It was listed on the National Register of Historic Places in 2006.

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