The Eureka Carnegie Library is a Carnegie library located at 520 N. Main in Eureka, Kansas. The library was built in 1914 through a $9,000 grant from the Carnegie Foundation. The George P. Washburn Co. designed the building in the Classical Revival style. The red brick library has a facade with three bays. The library's main entrance is within a projecting pavilion topped by a keystone and two voussoirs; the doorway once had a transom which has since been covered. A limestone entablature encircles the building, and the windows feature brick lintels with limestone keystones.The library was added to the National Register of Historic Places on August 10, 1988.