Franz Freiherr Zorn von Bulach (20 November 1858 – 13 January 1925) was a Catholic priest, a papal diplomat in Madrid, and auxiliary bishop in Strasbourg 1901–1919 and titular bishop of Erythrae. Zorn von Bulach was born and died in Strasbourg. He came from an old Alsatian noble family, the Zorns. He was the son of François Zorn von Bulach (1828–1890), who was the chamberlain of Napoleon III and a deputy for Lower Alsace (Bas-Rhin), and his wife Antoinette née von Reinbach-Hirtzbach. His brother Hugo Zorn von Bulach was a politician and representative at the German Reichstag.