Lewis Hanback (March 27, 1839 – September 7, 1897) was a U.S. Representative from Kansas.

During the Civil War he enlisted as a private in the Illinois Volunteer Infantry and was promoted to brigade inspector.

He served as assistant chief clerk of the State house of representatives.

He served as assistant United States district attorney of Kansas 1877–1879.

This article incorporates public domain material from the Biographical Directory of the United States Congress