Portrait of Marie Walewska is an oil on canvas portrait painting by the French artist François Gérard, from 1810. It depicts the Polish aristocrat Marie Walewska. She is best known as the mistress of the French Emperor Napoleon, with whom she had a son, Alexandre. The original is now in the Army Museum in Paris. A replica produced in 1812 is in the Palace of Versailles, having been acquired in 1837 for the Musée de l'Histoire de France.