• Mimsy, a word introduced by Lewis Carroll in his poem Jabberwocky
• Mimsy, a fictional character in the TV series The Secret Life of the American Teenager
• Mimsy, a fictional character in the episode "Crippled Summer
  Crippled Summer
  "Crippled Summer" is the seventh episode and mid-season finale of the fourteenth season of the American animated television series South Park, and the 202nd overall episode of the series. It originally aired on Comedy Central in the United States on April 28, 2010...
  
  " of the TV show South Park
• Mimsy Laaz, a fictional character in the anime series Super Dimension Century Orguss

See also

• Mimsie the Cat, the cat in the logo of MTM Enterprises