Cat Names
Below you find all the cat names starting with a O.
- O'Malley
- O'Mally
- O'Neil
- O'Roy
- O-Ren Ishii (after the character in the "Kill Bill" movie)
- O.B.
- O.B. (Orange Boy
- O.C. (Ordinary Cat)
- O.C. (Other Cat)
- O.F.C. (Our First Cat)
- O.J.
- O.J. Simpson
- O.N.N.A.O. (Oh No, Not Another One)
- O.T.M.
- Oaf
- Oakes
- Oakichobi
- Oakii
- Oakley
- Oakley Lucifer Fila Nike Levi Reebok
- Oasis
- Oatcake
- Oatmeal
- Oats
- Obelix
- Oberon
- Oberon Casimir Badpaintjob
- Oberon The Wonder Gut (Lord of the Faery Cats)
- Oberon-Smiley
- Obi
- Obi Wan Kenobi
- Obie (O.B.)
- Obijuan
- Obo
- Obsidian
- Obsididan
- Obstinate
- Ocabar
- Occi
- Occupant
- Ocelot
- Oci Osborne
- Ocitar
- Octavia
- October
- Odan
- Odd
- Oddball
- Oddibe
- Oddly McStrange
- Odeipus
- Odessa
- Odette
- Odie
- Odile
- Odin (Viking mythology: the allmighty god)
- Odo
- Odyssey
- Oedipus
- Ofel
- Ofelia
- Off!
- Off-License
- Often
- Og
- Ogden
- Ogies (Afrikaans for "Little eyes")
- Ogopogo
- Oh Arrogant One
- Oh Captain My Captain
- Oh Oh
- Oh-lee
- Oi!
- Oingo
- Oink
- Okavango
- Okee
- Okesha
- Oki
- Okie
- Okinawa
- Oklahoma
- Okra
- Oksana
- Ol' Buddy
- Ol' Sport
- Olaf
- Old D
- Old Deuteronomy
- Old Grandad
- Old School
- Old Sweetie
- Old Yeller
- Olde Scratch
- Oleg
- Oleo
- Olga
- Olhausen
- Olia
- Olimpia
- Olive
- Oliver
- Oliver Sebastian
- Oliver Stone
- Oliver Twister
- Olivette
- Olivia
- Olivia Pawdancer
- Olivia The Otter Cat
- Olja
- Olla
- Ollendorff
- Olli
- Ollie
- Ollie Bollie Mc Follie
- Ollie North
- Ollie South
- Olliecat
- Oloff
- Olsen.
- Oly
- Olympia DuKatKis
- Olympician
- Omaha
- Omar
- Omar Khayyam
- Omar Sharif
- Omega
- Omelet
- Omen
- Ometecuhtli (Aztec mythology: the god of duality)
- Omi
- Omni
- Omniscious
- Omonoia
- Onassis
- Ondine
- One Nut
- One-eyed Jack
- Oni (Japanese for 'demon')
- Oni Cheeto
- Onion
- Onions
- Only
- Onnee
- Onomatopoeia
- Onya
- Onyx
- Onyx O'Kitty
- Ooga-Booga
- Ooh-la-la
- Oona
- Ooopy Poopy
- Ooowwwrrraahh
- Oops
- Oosha
- Ootzsatootsie
- Oozie
- Opal
- Opaline
- Ophelia
- Opie
- Opium
- Oprah
- Oprah Anne
- Oprah Whiskers
- Optimistic
- Opus
- Orange
- Orange Blossom
- Orange Boy
- Orange Cat
- Orange Harvey
- Orange Juice
- Orange Kitty
- Orange Pekoe
- Orange Pico
- Orange Wishes
- OrangEndymion
- Oranges
- Orangie
- Orangina
- Orangy
- Orbit
- Orca
- Ord
- Ordinary
- Ore
- Oreao
- Oregano
- Oreo
- Oreo Bigfoot Thunderkitty
- Oreo Purrowitz
- Organa (named after Princess Leia Organa)
- Orion
- Oriondo
- Orla (Irish name meaning "golden princess")
- Orlando
- Orlon
- Orman
- Ornery
- Orphan
- Orphan Annie
- Orphelia
- Orpheus
- Orpheus And Euridice
- Orrin G. Cat
- Orsino
- Orson
- Orson Winslow
- Orville
- Orville And Wilbur
- Orvis
- Osborn
- Oscar
- Oscar Mayer
- Oscar Pisser
- Osceola
- Osgood
- Oshi
- Osirira
- Osiris
- Oslo
- Osman
- Oso
- Oswald
- Otari
- Othello
- Other
- Other Guy
- Otis
- Otter
- Otto
- Otto Octavius
- Oui
- Ouija
- Ouisa (oh-wee-sah)
- Our Gigi
- Outi
- Outlaw
- Outrigger
- Ouzo
- Oven Mitt
- Overboard
- Overdrive
- Ovid
- Ow!
- Owas-sa
- Owen
- Owl
- Ox
- Oxford
- Oxley
- Oyen
- Oz
- Ozma (after the character in "The Wizard of Oz)
- Ozone
- Ozu
- Ozymandius
- Ozzie
- Ozzy
- Ozzy Pawsburn