The three Le Nain brothers were painters in 17th-century France: Antoine Le Nain (c.1600–1648), Louis Le Nain (c.1603–1648), and Mathieu Le Nain (1607–1677). They produced genre works, portraits and portrait miniatures.
The brothers were born in or near Laon in northern France. Mathieu was born in 1607; Antoine and Louis were originally believed to have been born in 1588 and 1593, respectively, but are now thought to have been born later; the National Gallery gives them birth dates of "c. 1600? and c. 1603?". By 1630, all three lived in Paris, where they shared the studio founded by Antoine, who was admitted to the Paris painters' guild, enabling his two brothers to train under him without paying fees. Within a few years they were receiving important commissions, Antoine painting a group portrait of the aldermen of Paris in 1632.