List of legendary creatures (O)




 * 1) Obake (Japanese) – Shapeshifting spirits
 * 2) Obariyon (Japanese) – Spook which rides piggyback on a human victim and becomes unbearably heavy
 * 3) Obayifo (Ashanti) – Vampiric possession spirit
 * 4) Obia (West Africa) – Gigantic animal that serves witches
 * 5) Oceanid (Greek) – Nymph daughters of Oceanus
 * 6) Odei (Basque) – Storm spirit
 * 7) Odin (Norse mythology) – King of Asgard
 * 8) Odmience (Slavic) – Changeling
 * 9) Og (Jewish) – Giant king of the Amorites
 * 10) Ogopogo (Canadian) Canadian Lake Monster
 * 11) Ogun (Nigeria) – Iron god for the Yoruba people (South Western Nigeria)
 * 12) Ogre (Medieval folklore) – Large, grotesque humanoid
 * 13) Oiwa (Japanese) – Ghost of a woman with a distorted face who was murdered by her husband
 * 14) Ojáncanu (Cantabrian) – Giant cyclops who embodies evil.
 * 15) Ōkami (Japanese)  – Spirit wolf of powerful
 * 16) Okiku (Japanese) – Spirit of a plate-counting servant girl, associated with the "Okiku-Mushi" worm
 * 17) Ōkubi (Japanese) – Death spirit
 * 18) Okuri-inu (Japanese) – Dog or wolf that follows travelers at night, similar to the Black dog of English folklore
 * 19) Ole-Higue (Guyanese) – Vampiric hag who takes the form of a fireball at night
 * 20) Oluru, Leopard Warrior ((Tanzanian))-A leopard from Tanzania...
 * 21) Ōmukade (Japanese) – Giant, human-eating centipede that lives in the mountains
 * 22) Oni (Japanese) – Large, grotesque humanoid demon, usually having red skin and horns
 * 23) Onibi (Japanese) – Spectral fire
 * 24) Onmoraki (Japanese) – Bird-demon created from the spirits of freshly dead corpses
 * 25) Onocentaur (Medieval Bestiaries) – Human-donkey hybrid
 * 26) Onoskelis (Greek) – Shapeshifting demon
 * 27) Onryō (Japanese) – Vengeful ghost that manifests in a physical rather than a spectral form
 * 28) Onza (Aztec and Latin American folklore) – Wild cat, possibly a subspecies of cougar
 * 29) Oozlum bird (Unknown origin) – Bird that flies backwards
 * 30) Ophiotaurus (Greek) – Bull-serpent hybrid
 * 31) Opinicus (Heraldic) – Lion-eagle hybrid, similar to a griffin, but with leonine forelimbs
 * 32) Orang Bunian (Malay) – Forest spirit
 * 33) Orang Minyak (Malay) – Spectral rapist
 * 34) Ördög (Hungarian) – Shapeshifting demon
 * 35) Oread (Greek) – Mountain nymph
 * 36) Ork (Tyrolean) – Little people and house spirits
 * 37) Orobas (European) – Horse-headed, honest oracle classed as a demon
 * 38) Orphan Bird (Medieval Bestiaries) – Peacock-eagle-swan-crane hybrid
 * 39) Orthrus (Greek) – Two-headed dog
 * 40) Osiris (Hellenized) – God of the dead and the judge of the underworld
 * 41) Oshun (Nigeria) – God of love and fertility
 * 42) Otso (Finnish) – Bear spirit
 * 43) Ouroboros (Worldwide) – Mystic serpent/dragon that eats its own tail
 * 44) Ovinnik (Slavic) – Malevolent threshing house spirit
 * 45) Owlman (Cornish) – Owl-like humanoid