William Tolan Gray (April 5, 1871 – December 8, 1932), also spelled Bill Grey, was an American third baseman and utility player in Major League Baseball between 1890 and 1898. He played two seasons each with the Philadelphia Phillies and the Cincinnati Reds, and was the starter at third base for the Pittsburgh Pirates during his final season in the major leagues. He was officially listed as standing 5 feet 11 inches (180 cm) and weighing 175 pounds (79 kg).