Theodosius II was the eastern Roman emperor from 402 until 450.
Theodosius II or Theodosios II may also refer to:
Theodosius II of Abkhazia, king 828–855 Theodosius II of Alexandria, patriarch 12th century Teodósio II, Duke of Braganza, duke of Braganza (1583–1630) and father of John IV of Portugal Theodosius II of Constantinople, patriarch 1769–1773 See also Theodosius (disambiguation), a given name, including a list of people with that name