• Odin
  • Onyx
  • Olympus
  • Outlaw
  • Octavius
  • Omen
  • Oxford
  • Orion
  • Overton
  • Osiris

  • Oodles
  • Ollipop
  • Ozzie-Bear
  • Oopsy
  • Otto-Pup
  • Oki-Doki
  • Oodlebug
  • Oatsy
  • Otterpop
  • Owlet

  • Oakley
  • Ocean
  • Orchid
  • Ozone
  • Oasis
  • Obsidian
  • Ochre
  • Olive Branch
  • Ocelot
  • Oriole

  • Oberon (King of the Fairies in A Midsummer Night’s Dream)
  • Orpheus (Legendary Greek musician)
  • Ozymandias (Inspired by Egyptian Pharaoh Ramses II)
  • Oswin (Old English meaning “divine friend”)
  • Odysseus (From The Odyssey)
  • Omari (Swahili for “flourishing”)
  • Osric (Medieval warrior name)
  • Orenji (Japanese for “orange”)
  • Oryx (Exotic antelope species)
  • Ozalith (Fantasy-style name)

  • Oregano
  • Ovaltine
  • Onion
  • Orange Peel
  • Okra
  • Olive Pesto
  • Oreo Crunch
  • Oatcake
  • Ouzo (Greek anise-flavored drink)
  • Oban (Scottish whisky)