Little My (original Swedish: Lilla My, literally: "Little Mu") is a character in the Moomin series of books by Tove Jansson.

The name originated from the twelfth letter of the Greek alphabet: μ (mu) – transliterated as my and pronounced [ˈmyː] in Swedish.

[2] She typically makes a personal attack on the person she is having the discussion with or about,[3] states her own undocumented conclusions,[4] exaggerates her opponents' arguments to ridicule them,[5] and uses nonverbal effects to show her opponent's inferiority.

[6] Little My appears in the following books: In addition, Little My plays major roles in the picture-books The Book about Moomin, Mymble and Little My and An Unwanted Guest, has a brief speaking role in The Dangerous Journey, and makes a silent (and unmentioned by the narrative) cameo in one of the illustrations in Who Will Comfort Toffle?.

She also shows up as a major character in most Moomin-related media, comics, movies, and TV series.