Robert Trowbridge (June 27, 1930 – April 3, 1980) was an American professional baseball player, a pitcher who appeared in all or parts of five seasons (1956–60) for the Milwaukee Braves and Kansas City Athletics. A right-hander, he was listed as 6 feet 1 inch (1.85 m) tall and 180 pounds (82 kg). He was a member of the 1957 World Series champion Braves.