Saint Theodore may refer to:

People St. Theodore (died 130), companion of St. Pausilippus St. Theodore of Perge (died 220), see Theodore, Philippa and companions St. Theodore the Martyr St. Theodore of Amasea or St. Theodore Tyron (died 306), military saint St. Theodore of Heraclea or St. Theodore Stratelates (281–319), military saint St. Theodore, Bishop of Cyrene in Libya (died 310), hieromartyr, feast day July 4 St. Theodorus of Tabennese (c. 314–368), disciple of Saint Pachomius St. Theodore Trichinas (died 400), feast day April 20 Mar Theodore of Mopsuestia (c. 350–428), Christian theologian, and Bishop of Mopsuestia St. Theodore of Octodurum or St. Yoder (4th century), bishop of Octodurum St. Theodore of Vienne (died c. 575), Christian monk, abbot and hermit St. Theodore of Marseille (died 594), persecuted bishop St. Theodore of Sykeon (died 613), Byzantine ascetic Pope St. Theodore I of Rome (died 649) St. Theodore of Tarsus (602–690), archbishop of Canterbury St. Theodore of Pavia (died 778), bishop St. Theodore (died 820), Orthodox monk St. Theodore the Studite (759–826), monk, opponent of iconoclasm, and hymnographer St. Theodorus the Branded, (ca. 775–ca. 842), see Theodorus and Theophanes St. Theodore the Great Ascetic, Bishop of Edessa (died 848), feast day July 9 St. Theodore of the Kiev Caves (died 1098), monk-martyr, feast day August 11 St. Theodore the Black of Smolensk (13th century) St. Theodore the Fool-for-Christ of Novgorod (died 1392), feast day January 19 St. Feodor Ostrogski, (1360–1446) St. Theodore of Vršac (died 1594) St. Theodore of Komogovo (died 1788), Serbian Orthodox saint St. Théodore Guérin (1798–1856), French nun who died in Indiana St. Theodore Gusev (died 1940), new martyr, feast day January 19

Places Theotokos of St. Theodore, an icon named after Theodore Stratelates Saint-Théodore-d'Acton, Quebec, a small parish in Acton Regional County Municipality, Quebec, Canada

See also Agioi Theodoroi (disambiguation) Saint Theodora (disambiguation) San Teodoro (disambiguation) Teodor Theodore (disambiguation) Theodore (name)