Wikipedia

Many songs in various languages have been based on the “Ah! vous dirai-je, Maman” melody. In English, “Twinkle Twinkle Little Star“, the “Alphabet Song“, and a variant of it is used for “Baa, Baa, Black Sheep”. It is also the basis of the Scots song Coulter’s Candy. The German Christmas carol “Morgen kommt der Weihnachtsmann” also uses the melody, as does the Hungarian Christmas carol “Hull a pelyhes fehér hó”, the Dutch “Altijd is Kortjakje ziek”, the Spanish “Campanita del Lugar,” and the Turkish “Daha Dun Annemizin.”
Several classical compositions have been inspired by this tune:

• Johann Christoph Friedrich Bach, Variations on “Ah vous dirai-je Maman”
• Wolfgang Amadeus Mozart, Variations on “Ah vous dirai-je, Maman”
• Franz Joseph Haydn, The Surprise Symphony
• Camille Saint-Saëns, Carnival of the Animals, 12th movement (Fossiles)
• Ernő Dohnányi, Variations on a Nursery Tune, op.25 (1914)
• Erwin Schulhoff, Ten Variations on ‘Ah! vous dirai-je, Maman’ and Fugue
• John Corigliano, The Mannheim Rocket
• Franz Liszt, Album Leaf: “Ah! vous dirai-je, Maman”
• Theodor von Schacht, 3rd movement of his clarinet concerto in B flat major
• Johann Christian Heinrich Rinck, Variations on “Ah! vous dirai-je, Maman”
• Jean-Baptiste Cardon (1760–1803), Variations on “Ah! vous dirai-je, Maman”