Mushmouth may refer to:

  • Mushmouth, a character from the comic strip Moon Mullins
  • Mushmouth, a character from the animated cartoon Fat Albert and the Cosby Kids
  • Norwegian sea bass, particularly those native to Flekkefjord
  • Skipjack tuna
  • Mushmouth may also refer to the character Mushmouth Thomas frequently featured on The Dunham and Miller Show on The Ticket in Dallas