Les p'tites Michu (The Little Michus) is an opérette in three acts, with music by André Messager and words by Albert Vanloo and Georges Duval. The piece is set in Paris in the years following the French Revolution and depicts the complications ensuing after the identities of two girls become confused in their infancy.
The opera opened at the Théâtre des Bouffes-Parisiens, Paris, on 16 November 1897 and ran for more than 150 performances. It became an international success, with productions in four continents, including an unusually long run of 400 performances in London, and had subsequent revivals in Paris.