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Lost Cats Database for Fullerton, CA

Search lost and found cats, as well as other pets, in the Fullerton area with PawBoost.

1649 lost cats in your search

Lost Female Cat last seen I’m located towards main and Washington. But the whole entire neighborhood (surgeon), Santa Ana, CA 92701

Reported 2 months ago, updated 1 week ago

Tigress Female Cat

LOST PawBoost ID: 72973295


Santa Ana, CA 92701

Age: 6 (turns 7 this year 2026) Fur pattern/color: Tabby pattern (black, brown, and some white) Eye color: Green Special features. She has this little black dot on her certain of the nose. She does carry a pouch with her (her belly) *She is spayed*

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Lost Female Cat last seen Junipero Dr Duarte ca, Duarte, CA 91010

Reported 1 month ago, updated 1 week ago

Luna Female Cat

LOST PawBoost ID: 73008157


Duarte, CA 91010

Grey with one pink paw

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Lost Male Cat last seen 20th Street and Santa Ana Ave., Costa Mesa, CA 92627

Reported 2 months ago, updated 1 week ago

Frankie Male Cat

LOST PawBoost ID: 72939833


Costa Mesa, CA 92627

Black-and-white cat with a distinctive white stripe down the face, white chest, and white paws. : Male Age: 5 He is a friendly cat but may be shy and hide if approached 2 spots in his muzzle. Additional spots in his back paws

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Lost Male Cat last seen Rockfield and landisview, Lake Forest, CA 92630

Reported 1 week ago

Whiskers Male Cat

LOST PawBoost ID: 73131866


Lake Forest, CA 92630

Very sweet

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Lost Male Cat last seen N Salinas Ave and McKinley by 135th st, West Rancho Dominguez, CA 90059

Reported 3 weeks ago, updated 1 week ago

Stink Male Cat

LOST PawBoost ID: 73084910


West Rancho Dominguez, CA 90059

His very friendly he comes with dog whistles he’s chubby he has a tattoo on his stomach when he got neutered

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Lost Male Cat last seen E Thackery Ave and S Leaf Ave, West Covina, CA 91791

Reported 1 month ago, updated 1 week ago

Brady Male Cat

LOST PawBoost ID: 73011763


West Covina, CA 91791

Brownish/gray tabby with white on his front and stomach with no tail

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Lost Male Cat last seen On Dolan Avenue cross street Borson or other direction Lyndora, Downey, CA 90242

Reported 3 months ago, updated 1 week ago

Stick Tail Male Cat

LOST PawBoost ID: 72852703


Downey, CA 90242

Petite Male light gray tabby cat about seven months old very affectionate & friendly. Has an extra long thin tail. Has a pink nose. Does not meow but he does pur .Please let me know if you have seen him. He's been missing since May 3rd 2026.

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Lost Female Cat last seen Near Oak St, Whittier, CA 90605

Reported 1 week ago

Kitty Female Cat

LOST PawBoost ID: 73131641


Whittier, CA 90605

Domestic Shorthair Brown Patched Tabby

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Lost Male Cat last seen Ventura and falmouth, Anaheim, CA 92801

Reported 2 months ago, updated 1 week ago

Simon Male Cat

LOST PawBoost ID: 72858975


Anaheim, CA 92801

Small ear tip Notify Please Do not approach

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Lost Male Cat last seen Doty ave, Hawthorne, CA 90250

Reported 2 months ago, updated 1 week ago

Coconut Male Cat

LOST PawBoost ID: 72943862


Hawthorne, CA 90250

White and black

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Lost Male Cat last seen Peninsula High School, Rancho Palos Verdes, CA 90275

Reported 3 months ago, updated 1 week ago

Sir Male Cat

LOST PawBoost ID: 72805006


Rancho Palos Verdes, CA 90275

Senior brown tabby cat, friendly and smart.

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Lost Female Cat last seen Given Pl and S 4th St, Montebello, CA 90640

Reported 2 weeks ago, updated 1 week ago

Leela Female Cat

LOST PawBoost ID: 73123529


Montebello, CA 90640

White and gray cat with green eyes

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Lost Male Cat last seen Tesoro / Modena, Irvine, CA 92618

Reported 1 week ago

Thermo Male Cat

LOST PawBoost ID: 73131515


Irvine, CA 92618

Thermo is a brown tabby-and-white cat with a white chest, belly, muzzle, and legs. He has green eyes and a thick ringed tail.

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Lost Male Cat last seen Trask and brookhurst, Garden Grove, CA 92843

Reported 1 week ago

Bjork Male Cat

LOST PawBoost ID: 73131020


Garden Grove, CA 92843

Gray tabby with discolored nose. Wearing an Egyptian collar.

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Lost Male Cat last seen Orange, paramount, Paramount, CA 90723

Reported 1 week ago

Cry Baby Male Cat

LOST PawBoost ID: 73130532


Paramount, CA 90723

Dark brown male cat, medium length hair, missing left eye.

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Lost Female Cat last seen artesia / cerritos, Cerritos, CA 90703

Reported 2 months ago, updated 1 week ago

Shadow Female Cat

LOST PawBoost ID: 72912060


Cerritos, CA 90703

black cat, round green eyes. if found pls contact, she’s microchipped. we are very concerned that she didn’t come back home.

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Lost Male Cat last seen Via Pacifica and ontario/Citron and lincoln, Corona, CA 92882

Reported 4 years ago, updated 1 week ago

Moose Male Cat

LOST PawBoost ID: 68481262


Corona, CA 92882

Bobtail cat on larger side. Super chill kitty who is people friendly and missed dearly. He has maine coon markings on his back like he's divided in half. He's not usually gone this long and has faced many wild adversaries so hoping someone just has him.

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Lost Male Cat last seen 1st Street and Palm Street, Santa Ana, CA 92701

Reported 11 months ago, updated 1 week ago

Luna Male Cat

LOST PawBoost ID: 71897112


Santa Ana, CA 92701

White with dark gray face, ears, paws, and tail.

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Lost Male Cat last seen Alicia by the Laguna hills high school, Laguna Hills, CA 92653

Reported 1 month ago, updated 1 week ago

Olly Male Cat

LOST PawBoost ID: 73023688


Laguna Hills, CA 92653

A white short haired cat with a gray patch on his head. He has one blue and one green eye with no collar and a kink at the end of his tail

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Lost Unknown Cat last seen Behind staples parking, Downey, CA 90241

Reported 1 week ago

N/A Unknown Cat

LOST PawBoost ID: 73129849


Downey, CA 90241

Brown /grey with blue eyes chunky cat

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Lost Cat Data for Fullerton, CA

There are 1649 lost cats in Fullerton, CA.

Find Local Cat Shelters in Fullerton, CA

PawBoost has communities of cat-lovers across the country and beyond that help find missing cats, and that means partnerships with cat shelters in the US and in Canada.

Are you a team member at a shelter not yet partnered with PawBoost?

Request Shelter Partnership

Find Your Cat Sooner with PawBoost

When you have a missing cat, it can be difficult to know what to do in the moment.

How do I find my cat? Do I have to visit the cat shelters in my area in person, or is it okay to just call? How can I get the word out to my local community in Fullerton?

With our free tools and premium add-on services, PawBoost helps lost cat owners find their furry loved ones – 2,269,004 pets reunited and counting!

Find your lost cat faster with PawBoost.

Report Lost Cat

Frequently Asked Questions

I lost my cat. What should I do?

Take advantage of online platforms – they help you get the word out, quickly and easily. You can report your lost cat to PawBoost in no time flat. We'll send an email alert to our local members, post to the PawBoost-powered Facebook page for your area, add your cat to our lost & found, and make a lost cat flyer – all for free.

Other sites that help you raise local awareness for your lost cat with minimal time and effort are Nextdoor.com – a PawBoost partner – and Craigslist. Both of these sites have very active lost & found sections mainly used for lost pets. We highly recommend you use these resources in addition to PawBoost!

Visit your local shelters and animal control agencies in person. Details can get lost in translation over the phone and that might lead to missed connection.

If chipped, make sure your cat's microchip is registered and up to date. If you don't know your pet's chip manufacturer or number, your vet should be able to help locate this information.

Put up flyers and tell your neighbors to be on the lookout. The more you engage the Fullerton community, the better your chances of a happy reunion!

Read our full guide on how to find your lost cat for more actionable tips.

Where do I report a lost cat in Fullerton, CA?

If you lost a cat, we would like to help. You can report a lost cat to PawBoost for free to help find your cat in the Fullerton area. Millions of pet lovers have signed up for our local lost & found pet alerts, and that includes pet lovers near Fullerton!

Do I have to pay for premium PawBoost services to find my lost cat?

You don't have to pay to find your lost pet with PawBoost. PawBoost's free cat finder services have helped millions of people reunite with their lost cats.

PawBoost does offer premium upgrades to help increase the reach of your lost pet alert.

You can learn more about what free and premium services PawBoost offers here.