USS LSM-397 was a 520-ton (empty) Landing Ship Medium (LSM) of the United States Navy. Built at Charleston Navy Yard, South Carolina, and commissioned in July 1945, she served with the U.S. Atlantic Fleet for her entire Navy career, initially with the Amphibious Force. She was reassigned to the Service Force in May 1954. LSM-397 was decommissioned in February 1958, and was sold in May 1958.