Little Boy was the codename of the atomic bomb dropped on Hiroshima.

Little Boy may also refer to:

  • Boy, a young human male
  • Little Boy: The Arts of Japan's Exploding Subculture, a 2005 book about Japanese postwar culture
  • Little Boy (film), a 2015 American film
  • Little Boy (album), an album by Janno Gibbs
  • "Little Boy" (Captain Jack song)
  • "Little Boy" (The Crystals song)
  • "Little Boy", a song by Miriam Makeba from The World of Miriam Makeba
  • "Little Boy", a song by Vance Joy from Nation of Two
  • "Little Boys", a 2007 episode of the television series How I Met Your Mother

See also

  • Little Boy Blue (disambiguation)
  • Little Boy Lost (disambiguation)