Cat names often reflect the cat’s personality or may be chosen by the owner because of their similarity to something else, such as a relative’s name.
The most popular cat names in history have changed over time, with some names staying popular for centuries while others become popular for a short period.
Names like “Mittens,” “Whiskers,” “Smudge”, and “Buttons” have all made it to the list of most popular cat names in history.
Everyone knows that when looking for a new pet’s name, it’s easier to browse by letter.
Here is a list of cat names starting with O.
I’ve tried to cover as much ground as possible when making name lists so that you have loads of ideas, drawing inspiration from celebrities, pop culture, literature, history, film, nature, and the culinary world to create this collection.
I hope you enjoy reading through these ideas as much as I enjoyed finding them.
Cat Names Starting With O
- O.B.
- O.J.
- O’Neil
- O’Brien
- O’Malley
- Oaf
- Oahu
- Oak
- Oakes
- Oakleaf
- Oakley
- Oaklynn
- Oasis
- Oatcake
- Oatmeal
- Oats
- Obadiah
- Obama
- Obediah
- Obelix
- Obella
- Obera
- Oberon
- Obi
- Obi-Wan
- Obie
- Oboe
- Obscura
- Obsidian
- Obstinate
- Ocabar
- Occi
- Occupant
- Ocean
- Oceana
- Ocelot
- Ochre
- Ocitar
- Octave
- Octavia
- Octavius
- October
- Octopussy
- Oda
- Odan
- Odd
- Oddball
- Oddibe
- Oddie
- Ode
- Odea
- Odeipus
- Odelia
- Odell
- Odella
- Odera
- Odessa
- Odetta
- Odette
- Odie
- Odile
- Odin
- Odo
- Odon
- Odysseia
- Odysseus
- Odyssey
- Oedipus
- Oedipuss
- Ofel
- Ofelia
- Offred
- Ogden
- Ogies
- Ogopogo
- Ogre
- Oh Henry
- Oh-So
- Ohana
- Ohanna
- Oiler
- Oingo
- Oink
- Oisin
- Ojeda
- Okalani
- Okavango
- Okee
- Okeli
- Okesha
- Oki
- Okie
- Okinawa
- Oklahoma
- Okra
- Oksana
- Olaf
- Olantha
- Old Crow
- Old Faithful
- Old Fashioned
- Old Man
- Old Master
- Old Rasputin
- Oleander
- Oleg
- Olena
- Oleo
- Olesia
- Olga
- Olhausen
- Olin
- Olinda
- Olio
- Olita
- Olivarez
- Olive
- Olive Oil
- Oliver
- Olivet
- Olivette
- Olivia
- Olivine
- Olla
- Ollendorff
- Olli
- Ollie
- Ollie-Cat
- Olliecat
- Olliver
- Oly
- Olympia
- Omaha
- Omaira
- Omar
- Omari
- Ombra
- Ombre
- Omega
- Omelet
- Omen
- Omi
- Omni
- Omniscious
- Omonoia
- On or Off
- Ona
- Onassis
- Onaya
- OnChoi
- Ondine
- Ondre
- Oni
- Onika
- Onion
- Onions
- Only
- Onnee
- Onslow
- Ontario
- Ontiveros
- Onya
- Onyx
- Onyxia
- Oogie Boogie
- Oolong
- Oona
- Oops
- Oota Dabun
- Opal
- Opaline
- Opera
- Opey
- Ophelia
- Ophira
- Opie
- Opium
- Oprah
- Oprah Whiskers
- Ops
- Optimistic
- Optimus
- Opus
- Or
- Oracle
- Oralia
- Oralie
- Oran
- Orane
- Orange
- Orange Juice
- Orangehead
- Oranges
- Orangey
- Orangie
- Orangina
- Orangy
- Orbit
- Orca
- Orchard
- Orchid
- Orco
- Ord
- Ordinary
- Ore
- Orecchiette
- Ored
- Oregano
- Orella
- Oren
- Orenda
- Orengo
- Oreo
- Organa
- Oriana
- Oriel
- Orient
- Origami
- Orin
- Orinda
- Oriole
- Orion
- Oriondo
- Orla
- Orlanda
- Orlando
- Orlok
- Orlon
- Orman
- Ormond
- Ornament
- Ornery
- Orphan
- Orphelia
- Orpheus
- Orphia
- Orrin
- Orsino
- Orson
- Ortansia
- Orton
- Orville
- Orvis
- Orwell
- Orzo
- Osaka
- Osamu
- Osborn
- Osborne
- Oscar
- Osceola
- Osgood
- Oshi
- Osiris
- Oskar
- Oslo
- Osman
- Osmanthus
- Osmond
- Osmunda
- Oso
- Ossian
- Ostara
- Oswald
- Oswald
- Oswell
- Otari
- Othello
- Other
- Other Guy
- Otis
- Otter
- Ottie
- Otto
- Oui
- Ouija
- Ouisa
- Outi
- OutKast
- Outlaw
- Outrigger
- Ovale
- Ove
- Oven
- Owen
- Owena
- Owl
- Ox
- Oxalis
- Oxbow
- Oxford
- Oxo
- Oxy
- Oyen
- Oyster
- Oz
- Ozark
- Ozma
- Ozone
- Ozymandias
- Ozzie
- Ozzy
- Ozzy Osbourne
If you’re a new cat owner or looking to be one in the future, now is a great time to check out our top tips for new cat owners.
More cat name ideas:
Are you a cat lover looking for the purrfect name for your feline friend? Check out our entire archive of cat name posts for inspiration and ideas!
Or, for a quick alternative, check out these pages:
Cat Names Starting With U – 127 Of The Best
Cat Names Starting With X – 293 Of The Best
Cat Names Starting With Z – 406 Of The Best
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