James Philip Shellenback (born November 18, 1943) is an American former professional baseball pitcher and coach. He appeared in 165 Major League games for the Pittsburgh Pirates (1966–1967; 1969), Washington Senators/Texas Rangers (1969–1974) and Minnesota Twins (1977). The 6 ft 2 in (1.88 m), 200 lb (91 kg) Shellenback threw and batted left-handed. He is the nephew of the late Frank Shellenback, also a former MLB pitcher and coach.