The USS Duluth (LPD-6) was a dock landing ship of the United States Navy, commissioned in 1967. Designed to support amphibious operations, it could transport and land Marines, their equipment, and supplies directly onto hostile shores. The ship was equipped with a well deck for landing craft and a flight deck for helicopters. Throughout its service, the USS Duluth participated in various military exercises and humanitarian missions. It was decommissioned in 1991 after more than two decades of service, contributing to the Navy's capabilities in amphibious warfare and disaster relief operations.