USS Buchanan (DD-484), a Gleaves-class destroyer, was the second ship of the United States Navy to be named for Franklin Buchanan, who was an officer in the U.S. Navy who became an admiral in the Confederate Navy during the American Civil War.

Buchanan (DD-484) was launched on 22 November 1941 by Federal Shipbuilding and Dry Dock Co., Kearny, New Jersey; sponsored by Miss Hildreth Meiere, great-granddaughter of Admiral Buchanan. The ship commissioned on 21 March 1942.