Theodore II can refer to:
Theodore II, Exarch of Ravenna in 677–687 Patriarch Theodore II of Alexandria (Coadjutor), Greek Patriarch of Alexandria between the 7th and 8th centuries Pope Theodore II who reigned for twenty days during December 897 Theodore II of Constantinople, Ecumenical Patriarch in 1214–1216 Theodore II Laskaris, emperor of Nicaea (Byzantine Emperor in exile), 1254–1258 Theodore II Palaiologos (c.1396–1448), Despot of the Morea from 1407 to 1443 Theodore II, Marquess of Montferrat (died 1418), also of the Palaiologos dynasty Tewodros II of Ethiopia, Theodore II, Emperor of Ethiopia, 1855–1868 Patriarch Theodore II of Alexandria (born 1954), current (since 2004) Eastern Orthodox Patriarch of Alexandria Pope Tawadros II of Alexandria, Pope of the Coptic Orthodox Church of Alexandria (since 2012)
See also Feodor II of Russia