Rev. Otto Faller SJ (18 February 1889 – 16 May 1971) was Provincial Superior of the Jesuit order in Germany, educator, teacher and Dean at Stella Matutina in Feldkirch, Austria and Kolleg St. Blasien in Germany, professor of patristic studies at the Gregorian University. He was lifelong editor of the works of St. Ambrose. At the request of Pope Pius XII, he contributed to the preparation of the dogma of the assumption of Mary and organized new Papal charity and Papal refugee offices during World War II.