Rear Admiral French Ensor Chadwick USN (February 29, 1844 – January 27, 1919) was a United States Navy officer who became prominent in the naval reform movement of the post-Civil War era. He was particularly noted for his contributions to naval education, and served as President of the Naval War College from 1900–1903. Major sea commands included the gunboat USS Yorktown, commissioned in 1889. He served in the Spanish–American War, fighting at the Battle of Santiago de Cuba. As commander of the South Atlantic Squadron he played a major part in the Perdicaris incident of 1904 in Morocco.