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Lost Cats Database for Ontario, CA

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

884 lost cats in your search

Lost Female Cat last seen Summerfield boba, La Puente, CA 91748

Reported 2 months ago

Lana Female Cat

LOST PawBoost ID: 73180320


La Puente, CA 91748

She is a tabby cat with lion like strips. She has white paws and pink paws. She is a nervous cat and also is in heat. She’s about 1 years old. She has a white fur on her neck.

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Lost Female Cat last seen Grove and 9th, Upland, CA 91786

Reported 3 months ago, updated 2 months ago

Bootsie Female Cat

LOST PawBoost ID: 73000339


Upland, CA 91786

Clipped ear.

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Lost Female Cat last seen Superior, Pomona, CA 91767

Reported 3 months ago, updated 2 months ago

Boots Female Cat

LOST PawBoost ID: 73051366


Pomona, CA 91767

Shes grey with a white belly and white paws

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Lost Female Cat last seen Schaefer Magnolia, Chino, CA 91710

Reported 2 months ago

Fish Female Cat

LOST PawBoost ID: 73174615


Chino, CA 91710

Grey very friendly name is Fish

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Lost Male Cat last seen Near norms, Muscoy, CA 92407

Reported 3 months ago, updated 2 months ago

Max/Maxemilano Male Cat

LOST PawBoost ID: 73057138


Muscoy, CA 92407

Black and white kitty with yellowish/greenish eyes

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Lost Unknown Cat last seen Neighborhood Directly Across the street From the Stater Brothers on 16th& Mountain, but Above GreenBelt Park, Upland, CA 91786

Reported 3 months ago, updated 2 months ago

Merlin Unknown Cat

LOST PawBoost ID: 73073810


Upland, CA 91786

Light orange Tabby Cat, Green Eyes, around 9, Microchipped. Very cute. IMPORTANT: HAD A SURGERY THAT MAKES GENDER APPEAR TO BE FEMALE WHEN CHECKED. LOOKS LIKE A FEMALE ON FIRST GLANCE. ** this surgery was for his urinary tract blockage, therefor parts had to be removed **

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Lost Male Cat last seen Popular/Lucena, Fontana, CA 92335

Reported 3 months ago, updated 2 months ago

Cookie Male Cat

LOST PawBoost ID: 73040259


Fontana, CA 92335

Gray and white

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Lost Female Cat last seen Country Wood Dr. and Village Loop, Pomona, CA 91766

Reported 4 months ago, updated 2 months ago

Stella Star Female Cat

LOST PawBoost ID: 72904653


Pomona, CA 91766

Calico female with a quiet meow that sounds like a growl.

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Lost Female Cat last seen Santa Ana Canyon/Weir Canyon, Anaheim, CA 92808

Reported 2 months ago

Bella Female Cat

LOST PawBoost ID: 73172912


Anaheim, CA 92808

All black, except for a bit of white on her belly. approx. 18-24 months old. 8 pounds. Very friendly. Bella.

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Lost Male Cat last seen Near N La Cadena Dr, Colton, CA 92324

Reported 3 months ago, updated 2 months ago

Axe Male Cat

LOST PawBoost ID: 73008396


Colton, CA 92324

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Lost Male Cat last seen Deerpark drive and placentia ave, Fullerton, CA 92831

Reported 2 months ago, updated 2 months ago

Cakerz Male Cat

LOST PawBoost ID: 73157600


Fullerton, CA 92831

Black and white

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Lost Male Cat last seen Mills snd arrowhead, San Bernardino, CA 92408

Reported 3 months ago, updated 2 months ago

Airy Male Cat

LOST PawBoost ID: 73074960


San Bernardino, CA 92408

He’s black and has a white spot right in the middle of her neck

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Lost Male Cat last seen Lander Circle Claremont CA, Off of Baseline, Claremont, CA 91711

Reported 2 months ago

Yoshi Male Cat

LOST PawBoost ID: 73168427


Claremont, CA 91711

Grey kitty, green eyes. Very very sweet cat.

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Lost Female Cat last seen Pinon dr and oak st, Perris, CA 92570

Reported 2 months ago, updated 2 months ago

Gracie Female Cat

LOST PawBoost ID: 73156457


Perris, CA 92570

Bobtail two front white paws, little face no gray and white

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Lost Female Cat last seen Unknown- somewhere in La Puente, La Puente, CA 91744

Reported 2 months ago, updated 2 months ago

Luna Female Cat

LOST PawBoost ID: 73159712


La Puente, CA 91744

Gray domestic shorthair tabby with light gray fur and subtle darker gray stripes. Green-yellow eyes, pinkish-gray nose, white whiskers, and a ringed gray tail with a darker tip. Medium-sized, healthy build, and very friendly. Responds well to people. Deeply missed and loved.

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Lost Male Cat last seen Near Los coyotes st, Fontana, CA 92336

Reported 3 months ago, updated 2 months ago

BB Male Cat

LOST PawBoost ID: 73105580


Fontana, CA 92336

5-month-old long-haired Ragdoll. Distinctive black mark on one paw pad.

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Lost Female Cat last seen Coronel rd. & thorley rd., Santa Ana, CA 92705

Reported 2 months ago

Mochi Female Cat

LOST PawBoost ID: 73167279


Santa Ana, CA 92705

Grey with black stripes tabby cat. Collar fell off. Chipped.

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Lost Male Cat last seen H & 23rd st, San Bernardino, CA 92405

Reported 3 months ago, updated 2 months ago

Smokey Male Cat

LOST PawBoost ID: 73022061


San Bernardino, CA 92405

All charcoal gray

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Lost Male Cat last seen American Heroes Park Eastvale, CA, Eastvale, CA 92880

Reported 3 months ago, updated 2 months ago

Jax Male Cat

LOST PawBoost ID: 73068197


Eastvale, CA 92880

Orange with white paws

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Lost Male Cat last seen Chandler St & Hall Ave, Eastvale, CA 92880

Reported 3 months ago, updated 2 months ago

Merle Male Cat

LOST PawBoost ID: 73029483


Eastvale, CA 92880

Has brown/black/grey and white

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Lost Cat Data for Ontario, CA

There are 884 lost cats in Ontario, CA.

Find Local Cat Shelters in Ontario, 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 Ontario?

With our free tools and premium add-on services, PawBoost helps lost cat owners find their furry loved ones – 2,315,486 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 Ontario 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 Ontario, 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 Ontario area. Millions of pet lovers have signed up for our local lost & found pet alerts, and that includes pet lovers near Ontario!

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.