J C Hartman (born April 15, 1934) is an American former professional baseball player and Major League Baseball shortstop who appeared in 90 games over parts of two seasons, 1962 and 1963, for the Houston Colt .45s. He also played in the Negro leagues for the Kansas City Monarchs in 1955, when they were a barnstorming team. He was nicknamed "Cool" and "The Spider", the latter because of his arms and legs, which extended to prodigious lengths when he ranged after ground balls. The 6 ft (1.8 m), 175 lb (79 kg) Hartman, a native of Cottonton, Alabama, threw and batted right-handed.