John Young Radcliff (June 29, 1848 – July 26, 1911) was a professional baseball player who played for the Philadelphia Athletics (1871), Baltimore Canaries (1872–1873), Philadelphia Whites (1874), and Philadelphia Centennials (1875). He was primarily a shortstop. In 1873, playing for Baltimore, Radcliffe hit a career high 13 doubles and hit 33 runs batted in, with a .286 batting average. In 1874, playing for the Philadelphia Whites, he hit his second and final career home run, tying for the team lead in homers with George Bechtel.