The Cass County Courthouse in Plattsmouth, Nebraska was built in 1891.

It was listed on the National Register of Historic Places in 1990.

Built of brick, terra cotta, and stone, it is a two-story building, 80 by 102 feet (24 m × 31 m) in plan.

It has a tall (135 feet (41 m)) central clock tower, and four corner towers, each with steep hipped roofs and elaborate ornamentation.

This article about a property in Nebraska on the National Register of Historic Places is a stub.