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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 Male Cat last seen Violet and almond off palmyra, Orange, CA 92869

Reported 4 months ago, updated 3 months ago

Simon Male Cat

LOST PawBoost ID: 72911475


Orange, CA 92869

Brown tabby no collar

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Lost Male Cat last seen Towne and palomares, Pomona, CA 91766

Reported 4 months ago, updated 3 months ago

Gus Male Cat

LOST PawBoost ID: 72959407


Pomona, CA 91766

Orange tabby

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Lost Female Cat last seen Alderton ave, La Puente, CA 91744

Reported 3 months ago

Amari “momma” Female Cat

LOST PawBoost ID: 73120260


La Puente, CA 91744

Tabby with M logo on head

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Lost Male Cat last seen Hermosa Ave and 19th Street, Rancho Cucamonga, CA 91737

Reported 4 months ago, updated 3 months ago

Markus Male Cat

LOST PawBoost ID: 72963730


Rancho Cucamonga, CA 91737

Black teenager cat, recently neutered and wearing a cone that says "Ontario Spay and Neuter"

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Lost Female Cat last seen Avenida Hacienda, Riverside, CA 92508

Reported 3 months ago, updated 3 months ago

Poe Female Cat

LOST PawBoost ID: 73062758


Riverside, CA 92508

Black and white shorthair cat

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Lost Female Cat last seen Sandstone Way; Mountain Cove Community, Azusa, CA 91702

Reported 4 months ago, updated 3 months ago

Mochi Female Cat

LOST PawBoost ID: 72987572


Azusa, CA 91702

Long haired brown tabby; soft fur; crook at end of tail

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Lost Male Cat last seen mission, Riverside, CA 92509

Reported 3 months ago, updated 3 months ago

Niko Male Cat

LOST PawBoost ID: 73109468


Riverside, CA 92509

Orange and white tabby

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Lost Male Cat last seen Center drive, Villa Park, CA 92861

Reported 3 months ago

Shirin Sami Male Cat

LOST PawBoost ID: 73118445


Villa Park, CA 92861

Black cat with an orange collar that’s an Apple air tag.

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Lost Male Cat last seen Sierra Madre and Todd, Azusa, CA 91702

Reported 3 months ago, updated 3 months ago

Rajah Male Cat

LOST PawBoost ID: 73077151


Azusa, CA 91702

Gray and white with two white dots on upper lip

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Lost Male Cat last seen Wood Road, Mead Valley, CA 92570

Reported 3 months ago

Cailou Male Cat

LOST PawBoost ID: 73115431


Mead Valley, CA 92570

tabby with black and gray stripes

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Lost Male Cat last seen Jurupa Ave, Riverside, CA 92504

Reported 4 months ago, updated 3 months ago

Chicky Baby Male Cat

LOST PawBoost ID: 72954135


Riverside, CA 92504

Bengal cat with black stripes and black dots hair is short green eyes has a black dot on his testicles

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Lost Male Cat last seen sieer lakes golf club, Fontana, CA 92336

Reported 3 months ago, updated 3 months ago

BB. Male Cat

LOST PawBoost ID: 73070795


Fontana, CA 92336

Our 5-month-old Ragdoll kitten has been missing since approximately Sunday, June 28. * Blue eyes * Gray fur on the forehead * Friendly and dearly missed If you have seen this cat or have any information, please contact us immediately: Please help us bring our cat home. Thank you for sharing.

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Lost Female Cat last seen 14th street, Riverside, CA 92507

Reported 3 months ago

Grizzly Female Cat

LOST PawBoost ID: 73115157


Riverside, CA 92507

Grey medium hair domestic cat

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Lost Male Cat last seen Pheasant lane, Anaheim, CA 92806

Reported 3 months ago, updated 3 months ago

Whiskers Male Cat

LOST PawBoost ID: 73105253


Anaheim, CA 92806

White/orangeish has tiny scar on his nose, very fluffy

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Lost Male Cat last seen La Sierra and Victoria Ave, Riverside, CA 92503

Reported 4 months ago, updated 3 months ago

Twinkie Male Cat

LOST PawBoost ID: 72992809


Riverside, CA 92503

Orange and white cat

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Lost Female Cat last seen Heritage park, Fontana, CA 92336

Reported 3 months ago, updated 3 months ago

Uni Female Cat

LOST PawBoost ID: 73104661


Fontana, CA 92336

Pink Sphynx. Fuzz on ears, paws and tail. Blue eyes. Last seen wearing her black sweater.

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Lost Male Cat last seen BJs Restaurant, Moreno Valley, CA 92553

Reported 9 months ago, updated 3 months ago

Bigboy Male Cat

LOST PawBoost ID: 72394971


Moreno Valley, CA 92553

Both are missing they are siblings male and female

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Lost Male Cat last seen Arbolita Elementary, La Habra, CA 90631

Reported 4 months ago, updated 3 months ago

Smokey Male Cat

LOST PawBoost ID: 72945165


La Habra, CA 90631

Blue eyes, dirty blond hair, very fluffy

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Lost Male Cat last seen Southridge Park near the KBB homes, Fontana, CA 92337

Reported 3 months ago, updated 3 months ago

Leo Male Cat

LOST PawBoost ID: 73037532


Fontana, CA 92337

Maine coon mix, approx. 10 lbs, soft natured

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Lost Female Cat last seen Lemon & kibbee, La Mirada, CA 90638

Reported 3 months ago, updated 3 months ago

Gordita Female Cat

LOST PawBoost ID: 72993120


La Mirada, CA 90638

White with black patches, one side a almost heart shape in black

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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 – 2,315,561 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.