The Grouch may refer to:

• The Grouch (play) or Dyskolos, a 4th-century B.C. comedy by the Greek dramatist Menander

• The Grouch (rapper) (born 1975), American rapper and producer

• Grouch (video game), a 2000 action-adventure game

• "The Grouch", a song by Green Day from Nimrod

• Oscar the Grouch, a character on Sesame Street

• Brummbär (German for "Grouch"), the Allies' name for the Sturmpanzer 43, a German World War II armoured infantry support gun