William Gilthorpe Campbell (February 13, 1908 – February 21, 1973) was a Major League Baseball catcher. He played all or part of five seasons in the majors between 1933 and 1938.
In 295 games over five seasons, Campbell posted a .263 batting average (186-for-708) with 78 runs, 5 home runs, 93 RBI and 116 bases on balls. He finished his major league career with a .975 fielding percentage.