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)