Theodore
Theodore, or the Latin equivalent Theodorus, can refer to:
- Theodorus of Cyrene a mathematician from Greek antiquity
- Theodore of Amasea, a Christian saint
- Theodore the Studite, a saint of the Eastern Orthodox Church
- Pope Theodore I, Pope from 642 to 649
- Theodore, Syrian Patriarch of Antioch from 649 to 667
- Theodore of Tarsus, Archbishop of Canterbury from 668 to 690
- Theodore of Jerusalem, Greek Orthodox Patriarch of Jerusalem from 745 to 770
- Theodore, Orthodox Patriarch of Antioch from 751 to 797
- Pope Theodore II, Pope for twenty days in 897
- Theodore I Lascaris, Emperor of Nicaea from 1206 to 1222
- Theodore II Lascaris, Emperor of Nicaea from 1254 to 1258
- Theodore I, Emperor of Ethiopia from 1411 to 1414
- Theodore II, Emperor of Ethiopia from 1855 to 1868
- Theodore, Alabama
- Theodore, a Formula One racing team