Most Popular Cat Names That Start With O In 2025

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OJ

male female
Short of orange juice. So funny and so catchy!!

Obi

male
It is of African origin and it connotes king.

Obsidian

male
This lovely name refers to a hard, dark substance.

Ocelot

male female
A dwarf leopard that lives in south America.

Odessa

female
If you have come a long way with your loving friend, Odessa is a fitting name for her. It denotes a long journey.

Odette

female
Odette is a french name that connotes wealth. It is cool if you want your feline friend to showcase your riches.

Odin

male
God of mystery magic. Great name for your cat.

Odo

male
This unique name means rich.

Oki

female
This baby cat name means ocean centered.

Olaf

male
The lovable snowman who likes warm hugs is a good namesake for any white cats.

Olga

male female
A Russian female name for holy.

Olive

female
A cat which is beautiful, good looking, and adorable.

Oliver

male female
The ginger cat from the animated movie ”Oliver and Company”

Olivia

female
It is derived from the Russian word “oliva” which means olive.

Olympia

female
Olympia means mountain of the gods and it is greek in origin. A popular actress bears Olympia Dukakis.

Omar

male
This is a popular Arabic name that means long life, popular or flourishing. Omar Sharif is a popular actor.

Omega

male
Omega is the last letter of the Greek alphabet.

Omen

male female
This magical name is an ominous one for your cat.

Omeo

male
It is aboriginal and it means mountains.

Onyx

female
Absolutely cool sounding name for black Abyssinian cats;

Opal

female
Wonderful for a gray cat with white spots, reminiscent of a multicolored opal stone!

Ophelia

female
A beautiful name is taken from a dark and mysterious play.

Ophelie

female
French origin means serpentine

Oprah Whisker

female
A funny take on the name of one of the most famous women in the world.
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