John Adams (born October 9, 1951) is a dedicated fan of the Cleveland Indians, a Major League Baseball team based in Cleveland, Ohio.
Adams has played his bass drum in the bleacher seats during nearly every Indians home game since 1973, which has brought him notoriety and recognition from the Indians and other organizations.
The Indians pay for two season tickets for Adams and his drum, he has been involved in two ceremonial first pitches, and he is the only fan for whom the Indians have dedicated a bobblehead day.