Thomas Giatano Glaviano (October 26, 1923 – January 19, 2004) was an American professional baseball third baseman, who played in Major League Baseball (MLB) for the St. Louis Cardinals and Philadelphia Phillies. He appeared in 389 big league games, between 1949 and 1953. Glaviano threw and batted right-handed, standing 5 feet 9 inches (1.75 m) tall, weighing 175 pounds (79 kg).
Glaviano, a native of Sacramento, California, served in the United States Coast Guard during World War II. In his finest season, 1950, Glaviano batted .285, with 92 runs scored, 117 hits, 11 home runs, and 29 doubles, as the Cardinals' starting third baseman. All told, he collected 259 hits during his five-season MLB career.