Cartoon Characters with O
- Olaf
- Oggy
- Oswald
- Oliver
- Oscar
- Olivia
- Odie
- Optimus Prime
- Olive
- Ollie
- Otto
- Owen
- Opal
- Obelix
- Otis
- Olly
- Olivia the pig
- Octonauts
- Onix
- oliver twist
- Owl
- Olga
- Orochimaru
- Obito
- Orion
- Oso
- Oogway
- Ozzy
- Otto Octavius
- Ogre
- One punch man
- Oswald the lucky rabbit
- Ophelia
- obi wan kenobi
- Osmosis Jones
- Octavia
- oswald the rabbit
- Omniman
- Old Man Jenkins
- Oso yogui
- Oggie
- Omni man
- octopus
- Onyx
- Oliver the cat
- Onion
- Oswald the Octopus
- Oden
- oddish
- Oliver Queen
- Obi-Wan Kenobi
- Olie
- Ogie
- ozwald
- opie
- olive from popeye
- Olive the other reindeer
- Olof
- Otto Rocket
- oli
- Oak
- Ola
- Odis
- Oshawott
- Ostrich
- Odette
- Oliver atom
- Oikawa
- Octoman
- Oddie
- Oolong
- Oona
- Oni
- Oogie Boogie
- OSCAR THE GROUCH
- Old McDonald
- OLIVE OIL
- Onceler
- Olivier
- Oswald Cobblepot
- Ollie the Octopus
- Otto Mann
- Oscar Proud
- Octonaut
- Octavius
- Oswal
- Oliva
- odin
- Omi
- octo
- Obi-wan
- Obi
- Onichan
- Orihime
- oyster
- Olli
- One Piece
- Ozzie
- otter
- Oaken
The words in the list Cartoon Characters with O come from players of the word game City, Country, River.