Jean-François Sablet (23 November 1745, Morges - 24 February 1819, Nantes) was a French painter; part of a family of artists of Swiss origin.
Jean-François Sablet was the older brother of Jacques-Henri Sablet (1749-1803). They were sons of the painter and picture dealer Jacob Sablet (1720-1798). They both studied at the Académie royale de peinture et de sculpture in Paris as pupils of Joseph-Marie Vien. Jean-François studied at the Académie in 1768-1773 and Jacques-Henri in 1772-1775. Although their careers did not follow a similar course, the attribution of their works has frequently been confused.
He was the son of a decorator and gilder from Lausanne, he studied with his father before moving to Paris in 1772. In Paris he worked with Joseph-Marie Vien for three years. When in 1775 Vien was named director of the French Academy in Rome, Sablet accompanied him there. His ambition was to be a history painter, but facing competition from Jacques-Louis David and Pierre Peyron, among others, and lacking solid academic training, he could win no commissions. Instead he turned to portraiture, genre painting, and landscape painting. Most of his genre scenes depicted the city's everyday life and customs of the Campagna.
Among Jean-François Sablet's early portraits are those of Charles de Bourbon, Comte d'Artois, as Colonel General of the Swiss and Grison Guards (1774; ex-Bourbon-Chalus Collection, Paris) and Charles-Henri, Comte d'Estaing (untraced). He also painted genre scenes, such as Childhood in the Country and Visit to the Wet-nurse (both untraced), and mythological scenes (e.g. Nationalmuseum, ).