Johnston County Courthouse is a historic courthouse building located at Smithfield, Johnston County, North Carolina.

It was designed by architect Harry Barton and built in 1920–1921.

It is a three-story, rectangular steel frame building with a cut stone veneer in the Classical Revival style.

[2] It was listed on the National Register of Historic Places in 1979.

This article about a property in Johnston County, North Carolina on the National Register of Historic Places is a stub.