Cat Names Starting With O

Still need a name for your kitty? Here's a list of cat names beginning with O.

Quickly see the meaning of each name by tapping the arrow , and then tap the heart to add a name to your saved list.

• O’malley

  Irish surname meaning "descendant of Maolmhaodhog" (servant of the chief).
• O’toole

  Descendant of Uaithne.
• Oatmeal

  A type of porridge made from oats.
• Obadiah

  Servant of Yahweh
• Oberon

  The second-largest moon of Uranus.
• Obi-wan

  Protector of peace.
• Oblomov

  Laziness.
• Obsidian

  A dark, glass-like volcanic rock.
• Occult

  supernatural forces and events and beings collectively
• Ocean

  A large body of salt water, usually surrounded by land.
• Oceanus

  The titan god of the ocean
• Octans

  The eighth part or division.
• Octavia

  Noble, eight
• Octavius

  Eighth
• Ode

  A lyrical poem expressing deep emotion.
• Odell

  A surname derived from a place name meaning "woad hill" in Old English.
• Odette

  Wealth
• Odie

  Lovable, friendly.
• Odin

  (Norse mythology) ruler of the Aesir; supreme god of war and poetry and knowledge and wisdom (for which he gave an eye) and husband of Frigg; identified with the Teutonic Wotan
• Odor

  Aroma or scent.
• Odysseus

  (Greek mythology) a famous mythical Greek hero; his return to Ithaca after the siege of Troy was described in the Odyssey
• Odyssey

  A long journey or series of adventures.
• Ogre

  A mythical creature typically depicted as a large, hideous, humanoid monster.
• Ohara

  Small field
• Oj

  Native American for "fish".
• Oja

  Vitality
• Ojas

  Energetic
• Oki

  Blue water
• Olaf

  Norse for "ancestor's descendant" or "ancestor's relic".
• Oleander

  A flowering shrub.
• Olga

  Famous, holy, successful woman.
• Olive

  evergreen tree cultivated in the Mediterranean region since antiquity and now elsewhere; has edible shiny black fruits
• Oliver

  United States jazz musician who influenced the style of Louis Armstrong (1885-1938)
• Olivia

  Feminine form of Oliver, meaning "olive tree".
• Ollie

  Old English for "Olive Tree"
• Oluja

  Bosnian meaning 'storm'
• Olympia

  capital of the state of Washington; located in western Washington on Puget Sound
• Om

  What the Buddhists hum; the sound of the universe.
• Ombra

  Italian meaning 'shadow'
• Omelet

  beaten eggs or an egg mixture cooked until just set; may be folded around e.g. ham or cheese or jelly
• Omen

  A sign or warning of something, especially of something bad or evil.
• Onfroi

  Peaceful Hun
• Onish

  Lord of mind
• Onyx

  a chalcedony with alternating black and white bands; used in making cameos
• Opal

  a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
• Ophelia

  The name of one of Uranus’ moons.
• Ophrah

  Fruitful
• Optimus

  Best possible outcome/solution.
• Oracle

  an authoritative person who divines the future
• Oralie

  Golden
• Orangina

  Fruity, citrusy.
• Orbit

  Refers to the curved path of a celestial object.
• Orca

  A large sea mammal.
• Orchid

  any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors
• Oreo

  chocolate cookie with white cream filling
• Orino

  Worker’s field
• Orion

  a constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel
• Orla

  Irish for "golden princess" or "golden queen".
• Orlando

  Heroic
• Oro

  Gold
• Orpheus

  The name of an asteroid and a space telescope.
• Orson

  Strong, brave.
• Orville

  Golden city
• Orwell

  Protector of the river.
• Osa

  Female bear
• Osamu

  Discipline
• Oscar

  Noble strength.
• Oshi

  Protector.
• Osiris

  Egyptian god of the underworld and judge of the dead; husband and brother of Isis; father of Horus
• Oslo

  Meadow
• Oso

  Male bear
• Otis

  United States inventor who manufactured the first elevator with a safety device (1811-1861)
• Ottilie

  Prosperous
• Otto

  Germanic for "wealthy" or "prosperous".
• Owen

  Welsh industrialist and social reformer who founded cooperative communities (1771-1858)
• Ozark

  A mountainous region in the central United States.
• Ozone

  As in the Ozone Layer, a “shield” of Ozone in Earth’s stratosphere that absorbs most of the Sun’s ultraviolet radiation.
• Ozzy

  as in Ozzy Osbourne, who rose to fame as the lead singer of Black Sabbath and later as a reality show personality.

Cat Names Starting With O currently rank in 89th place out of all MeowNames.com categories.

As of December 2024, cat names starting with o are losing some popularity with new kitten owners. According to MeowNames stats, they are less fashionable than they were at this time last year.

We've seen quite a bit of variation for this category, which might suggest that its popularity is influenced by seasonal or cultural events.