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.

The Gleaves-class destroyers were a class of 66 destroyers of the United States Navy built 1938–42, designed by Gibbs & Cox. The first ship of the class was USS Gleaves. They were the destroyer type that was in production for the US Navy when the United States entered World War II.