Skip to main content- O'bati
- Ochre Jelly
- Octopus
- Octopus, Giant
- Ogre
- Ogre Mage Scion of Kyuss
- Ogre Mage, Entropic
- Ogre Mummy
- Ogre, 4th-Level Barbarian
- Ogre, Mage
- Ogre, Merrow
- Ogre, Skullcrusher
- Ogre, Skullcrusher Sergeant
- Orc, 1st-Level Warrior
- Orc, Snow Shaman
- Orglash
- Ormyrr
- Otyugh
- Owl
- Owl Archon
- Owl, Celestial
- Owl, Giant
- Owlbear