Villain with O
- Ogre
- Otto Octavius
- Octavious
- Osama bin laden
- Octavius
- Odin
- Overlord
- Omniman
- Omega
- Oblivion
- Orochimaru
- OJ Simpson
- onceler
- Ozymandias
- Orion
- Otto
- Omni man
- Otto octavious
- osborn
- Orc
- Osborne
- Obito
- Orcs
- Oliver
- Osama
- Ozai
- Octavian
- othello
- Oracle
- octoman
- Oberon
- Ophelia
- oswald cobblepot
- Onslaught
- Omega red
- Odd Job
- Obadiah Stane
- Oman
- orange
- octo octavius
- Oddjob
- O'hare
- Orange man
- Oogie Boogie
- Oger
- Octavio
- Ogres
- Obliterator
- Octopus Doctor
- Oculus
- Omicron
- Om puri
- Orson
- octavia
- Octavios
- oedipus
- orpheus
- Ocean
- ock
- OSCAR
- Oli London
- owen
- ozzy
- Omarosa
- Octavias
- Octane
- Owlman
- oliver twist
- octupus
- orson welles
- Oni
- Octopi
- Outsider
- Owl man
- Orangutan man
- Otto Octavias
- Ostrich
- orlando
- Ogar
- Otello
- Ohio
- Opps
- olive
- Oddball
- Osbourne
- Outlander
- Otto Von Bismark
- odile
- Ozark
- Opal
- Orca
- Orochi
- Ork
- oclin
- Oligarchs
- Otters
- Ollie
- Oh no
- Ojoker
- Omkara
Slová v zozname Villain with O pochádzajú od hráčov slovnej hry Meno, Mesto, Zviera, Vec.