The USS Callaghan (DD-792) was a Gearing-class destroyer of the United States Navy, launched on March 26, 1945. It was named after Admiral Daniel Callaghan, who was awarded the Medal of Honor for his bravery during the Battle of Guadalcanal in World War II. The ship was designed for anti-submarine warfare and surface action, featuring advanced radar and weaponry for its time. Commissioned on December 15, 1945, the USS Callaghan served in various roles, including training and fleet operations. It was decommissioned in 1973 and later sold for scrap. The ship played a significant part in the post-war naval strategy of the United States.