Hero with O
- Odin
- Optimus Prime
- Orion
- One punch man
- Omni man
- Oliver Queen
- Octonauts
- oprah
- Orpheus
- octoman
- odysseus
- Oracle
- Oliver twist
- Owl man
- oblivion
- Obelix
- Oedipus
- Old man
- obi wan kenobi
- Okoye
- Owlman
- octavius
- Ozymandias
- otto octavius
- Obi wan
- Osiris
- Octo man
- omega
- Orville Wright
- Obliterator
- Omen
- Otto
- Oppenheimer
- Ogre
- Osmosis Jones
- omni-man
- Om puri
- ocean
- Oswald
- Omega man
- Ozone
- oreo man
- Onyx
- Olivia
- Oscar wilde
- oden
- Opal
- Owl
- orochimaru
- Osama
- Overwatch
- Oberon
- om prakash
- Omega red
- Obadiah
- Open
- omar
- oreo
- Octavia Spencer
- Officer of the law
- Oli
- olivia newton john
- Orthodontist
- Oskar Schindler
- Ollie
- Orlando bloom
- olive
- Oprah Winfrey
- Ox man
- Oniman
- oct
- Onceler
- o-man
- optimums prime
- orca man
- omkar
- Obituary
- Overkill
- Oasis
- Olivier
- ochaco uraraka
- OmniMan
- omegaman
- oceanman
- Ocean man
- Other
- Octonaughts
- Onix
- oscar schindler
- Oliver the great
- Octavian
The words in the list Hero with O come from players of the word game City, Country, River.