Jean-François Sablet (23 November 1745 – 24 February 1819) was a French painter; part of a family of artists of Swiss origin.
He studied with his father, the painter and picture dealer Jacob Sablet (1720–1798), before moving to Paris in 1772.
In February 1793 Jean-François Sablet was obliged to leave Rome with the rest of the French community and by October was in Paris as a member of the Revolutionary Commune des Arts.
He produced a number of Revolutionary portraits, including Joseph-Agricol Viala, William Tell and Lycurgus (all untraced), but spent most of his time quietly in Normandy.
In 1805 he established himself in Nantes, producing small-scale portraits of the city's notables with sometimes scathing sincerity.