Manley, John (1734?–1793), a United States naval officer. In 1775 he was given command of the schooner Lee, part of a small naval force assembled by George Washington. He captured the British brigantine Nancy with a cargo of military supplies badly needed by Washington's troops—the first valuable prize of the war. In 1776 he was made a captain of the Continental Navy. He captured a number of other ships, some while a privateer. In 1783, while in command of the frigate Hague, he captured the Baille, the last important prize taken by a Continental ship.

Manley was probably born in Boston. He began his career as a merchant sea captain. During the course of the war, Manley was captured three times by the British; once he managed to escape, the other two times he was exchanged.