Philip James Roosevelt (May 15, 1892 – November 1941) was a World War I captain for the United States Army, Aviation Section, U.S. Signal Corps (predecessor to the United States Air Force), editor of Aviation and Aeronautic Engineering (later known as Aviation Week, then Aviation Week & Space Technology), banker, yachtsman, and a cousin of United States President Theodore Roosevelt. Philip was close to the president's children and accompanied them on trips. He was a 1912 graduate of Harvard University. He served as the 1914 President of The Harvard Advocate.