A TO Z OF GREEK MYTHOLOGY - O

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  • Ocalea – City state in Boeotia, on the shore of Lake Copais, at one time ruled by King Rhadamanthys. 
  • Oceanids - Freshwater goddesses, the 3000 nymph daughters of the god Oceanus. 
  • Oceanus - Titan god, son of Ouranus and Gaia, father of the 3000 Potamoi and the 3000 Oceanids, Titan god of the Sea and Water.
  • Odysseus – Greek hero, son of Laertes and Anticlea, husband of Penelope and father of Telemachus. Suitor of Helen and a leader of Achaean forces at Troy.
  • Oebalus - Mortal king, son of Cynortes, father of Hippocoon amongst others, king of Lacedaemon and Sparta
  • Oeneus  - Mortal king, son of Porthaon, husband of Althaea, father of Meleager and Deianira. King of Calydon
  • Ogygia – Island home of Calypso, and for a while Odysseus. Possibly the island of Gozo, Malta. 
  • Oicles  - Mortal king, son of Antiphates and Zeuxippe, husband of Hypermnestra, father of Amphiaraus, Iphanira and Polyboea, king of Argos
  • Olympus (i) – An Ourea and Protogenoi, son of Gaia. A Greek god of the mountain of same name.
  • Olympus (ii) – An Ourea and Protogenoi, son of Gaia. A Greek god of the mountain of same name (Mysian Olympus). 
  • Onchestus  - Mortal king, son of Poseidon, father of Habrote and Megarus. King of Onchestus. 
  • Oneiroi - Early gods, sons of Nyx. The 1000 daemons of dreams in Greek mythology.
  • Oreads – Mountain nymphs, nymphs of mountains and mountain forests.  
  • Orithyia - Mortal princess, daughter of King Erechtheus and Queen Praxithea. Abducted by the Anemoi Boreas, and became mother to the Boreads. 
  • Orpheus - Mortal hero, son of Oeagrus and Calliope, husband of Eurydice. Argonaut
  • ​Orthus - Monstrous hound, offspring of Echidna and Typhon, parent of the Nemean Lion and the Sphinx, killed by Heracles 
  • Otrera - Mortal Queen, daughter of Ares and Harmonia, mother of Hippolyta, Penthesilea and Antiope, Queen of the Amazons
  • Ouranos - Protogenoi, son of Gaia and mate of Gaia, father of the Titans. First supreme deity and Greek god of the Sky. 
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Orpheus
Orpheus - Károly Ferenczy (1862–1917) - PD-art-100
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Greek gods beginning with O, greek goddesses beginning with O, greek mythology beginning with O