Joseph, Baron Ducreux (26 June 1735 – 24 July 1802) was a French noble, portrait painter, pastelist, miniaturist, and engraver, who was a successful portraitist at the court of Louis XVI of France, and resumed his career at the conclusion of the French Revolution. He was made a baron and premier peintre de la reine (First Painter to the Queen), and drew the last portrait ever made of Louis XVI before the king's execution. His less formal portraits reflect his fascination with physiognomy.