Léonard-Alexis Autié, also Autier[1] (c. 1751 – 20 March 1820), often referred to simply as Monsieur Léonard, was the favourite hairdresser of Queen Marie Antoinette and in 1788–1789 founded the Théâtre de Monsieur,[2] "the first resident theatre in France to produce a year-round repertory of Italian opera."[3]