Marcel Boussac (17 April 1889 – 21 March 1980) was a French entrepreneur best known for his ownership of the Maison Dior and one of the most successful thoroughbred race horse breeding farms in European history.

In 1911 he acquired the Château de Mivoisin, a 36 square kilometre property located 1½ hours south of Paris in Dammarie-sur-Loing, Loiret.

In addition to being a six-time winner of France's most important race, the Prix de l'Arc de Triomphe, Boussac's horses also won the prestigious Epsom Derby, Epsom Oaks, 2,000 Guineas, St. Leger Stakes, Ascot Gold Cup and others in the United Kingdom.

With the Fall of France in the Second World War, Boussac paid a British Royal Air Force officer on secret business to fly him from Paris to the UK.

On his death in 1980, Boussac's estate was liquidated and L'Aurore sold to Robert Hersant who merged it with his Le Figaro newspaper.