Hans Heinrich Schaeder (* 31. January 1896 in Göttingen; † 13. March 1957) was a German orientalist and Iranologist. He was a professor at University of Berlin (from 1931), and University of Göttingen (1946-1957). His wide-ranging studies included various aspects of religions and history of pre-Islamic Iran. for various problems of Manichaeism, he offered ground-breaking solutions (Iranische Beiträge, 1930; Iranica, 1934).