The Old U.S. Post Office and Courts Building is a historical 19th century brick government building, located in Jefferson, Marion County, Texas.

The building now houses the Jefferson Historical Museum.

[2] It was listed on the National Register of Historic Places in 1969.

The building was purchased by the Jefferson Historical Society for use as a museum in 1965.

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