John Mortimer Schiff (August 26, 1904 – May 9, 1987) was an American investment banker and philanthropist. He was a partner in the firm Kuhn, Loeb & Co., as well as a trustee of the John Simon Guggenheim Memorial Foundation, a breeder of championship thoroughbred racehorses, and the national president of the Boy Scouts of America from 1951 to 1956.