Tommy Douglas Dean (born August 30, 1945) is an American former professional baseball player.

A shortstop, his career extended from 1964–71 and included 215 games played in Major League Baseball over four seasons (1967; 1969–71).

Dean was listed at 6 feet (1.8 m) tall and 165 pounds (75 kg), and threw and batted right-handed.

Dean was signed out of Iuka (MS) High School for a $60,000 bonus in 1964 as an undrafted free agent by Los Angeles Dodgers general manager Buzzie Bavasi, who was trying to transform the Dodgers into a team built around pitching, speed and defense and considered Dean a top young prospect.

He was the Padres' most-used shortstop that year, starting in 81 of the club's 162 games.