Hatto may refer to: Hattō, Tottori, a town in Japan People Hatto I (c. 850–913), German Roman Catholic bishop Hatto II (died 970), German Roman Catholic bishop Hatto, Bishop of Passau (fl. 806–817) German Roman Catholic bishop Hatto of Fulda, abbot of Fulda between 842 and 856; see Candidus of Fulda Haito (763–after 824), German Roman Catholic bishop Hatto Ständer (1929–2000), German musician and composer People with the surname Arthur Thomas Hatto (1910–2010), English scholar of German studies and husband of Margot Hatto Jeanne Hatto (1879–1958), French operatic soprano Joyce Hatto (1928–2006), British pianist Margot Hatto (1911–2000), German business owner and wife of Arthur Thomas Hatto Tommy Hatto, British actor