USS Porter (DDG-78) is an Arleigh Burke-class destroyer in the United States Navy. Porter is the fifth U.S. Navy ship to be named after Navy officers Commodore David Porter (1780 – 1843), and his son, Admiral David Dixon Porter (1813–1891). Commodore Porter commanded a number of U.S. naval ships, including the famous USS Constitution. He saw service in the First Barbary War, the War of 1812 and in the West Indies. On July 2, 1812, Porter hoisted the banner "Free trade and sailors' rights" as Captain of USS Essex. The phrase resonated with many Americans.


Admiral David Dixon Porter helped improve the Navy as the superintendent of the U.S. Naval Academy after significant service in the American Civil War. Porter became the second man to hold the newly created rank of admiral as Secretary of the Navy. He gathered a corps of like-minded officers devoted to naval reform.