Henri Petit (alias: Henri-Robert or Henry-Robert) (1899–1985) was a French journalist, collaborationist under the Vichy regime, and far-right activist. Henri Petit wrote several anti-Semitic and anti-Masonic books, and worked with far-right journalist Henry Coston, creator of an "Anti-Jewish Youth" organisation. Petit presented himself as an "anti-Jew" candidate for the 1936 legislative elections, which were won by the left-wing Popular Front. Petit then broke with Coston, who accused him of having stolen him money. In 1937, Petit became the secretary general of Louis Darquier de Pellepoix's (Anti-Jewish Committee of France). In May 1942, Darquier de Pellepoix replaced Xavier Vallat as Vichy France's Commissioner for Jewish Affairs.