Emperor Michael may refer to:

Nine Byzantine emperors Michael I Rangabe (r. 811–813) Michael II (r. 820–829) Michael III (r. 842–867) Michael IV the Paphlagonian (r. 1034–1041) Michael V Kalaphates (r. 1041–1042) Michael VI Bringas (r. 1056–1057) Michael VII Doukas (r. 1071–1078) Michael VIII Palaiologos (r. 1261–1282) Michael IX Palaiologos (r. 1294–1320) Michael II Asen (r. 1246–1256), tsar of Bulgaria Michael Shishman of Bulgaria (r. 1323–1330), tsar of Bulgaria Michael of Russia (r. 1596–1645), tsar of Russia