Adélaïde Labille-Guiard (11 April 1749 – 24 April 1803), also known as Adélaïde Labille-Guiard des Vertus, was a French miniaturist and portrait painter. Adélaïde Labille-Guiard was born in Paris, the youngest of eight children, to a bourgeois family. Her father, the haberdasher Claude-Edme Labille, owned a shop named 'A La Toilette' situated in the Rue neuve des Petits Champs in the parish of Saint-Eustache. Jeanne Bécu, the future Madame du Barry, worked in this very shop around the age of eighteen, and would eventually become good friends with Labille-Guiard. Though Labille-Guiard became a master at miniatures, pastels, and oil paintings, little is known about her training. Much of this lack of information is due to the practices of the time, which dictated that masters (who were predominantly male) should not take on female pupils, as society perceived that they would not be able to follow instruction alongside men.
During adolescence, Labille-Guiard studied miniature painting with the oil painter François-Elie Vincent, a family friend. Due to Vincent's connections, her early works were exhibited at the Académie de Saint-Luc. During this apprenticeship, she would meet her future husband, Vincent's son François-André Vincent.
After marrying Louis-Nicolas Guiard in 1769, she apprenticed with the pastel master Quentin de la Tour until Tour's marriage in 1774.