Ivan Rhuele "Van" Gates (January 15, 1890 – November 24, 1932) was an American aviator and entrepreneur. While a member of the San Francisco Police Department, he is credited with being the first to transport a prisoner by air. He founded or co-founded the barnstorming Gates Flying Circus, which attained much success and fame in the 1920s. Later, he and designer Charles Healy Day established the Gates-Day Aircraft Company, later renamed the New Standard Aircraft Company, to design and manufacture airplanes.