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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 S riverside ave between Randal and San Bernardino, Rialto, CA 92316

Reported 10 months ago, updated 2 days ago

Mila Female Cat

LOST PawBoost ID: 72247308


Rialto, CA 92316

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Lost Female Cat last seen Collingswood Drive, Pomona, CA 91767

Reported 4 weeks ago, updated 2 days ago

Korra Female Cat

LOST PawBoost ID: 73315658


Pomona, CA 91767

Grayish cat,with brown and white spots/patterns

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Lost Male Cat last seen Texas/Brockton Redlands, CA, Redlands, CA 92374

Reported 1 year ago, updated 2 days ago

Capture Male Cat

LOST PawBoost ID: 71996718


Redlands, CA 92374

We are a low vision/total blind couple, our 8 year old Brown Bengalis missing, he small and large round "rosettes"markings on sides and some bars and stripes on legs. Bengal with green eyes, under nose and down chin is white. We really miss him, moved from Minnesota, microchip company is up to date but his microchip is hard to find per vet but they didn't think we need to have a new microchip placed.

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Lost Male Cat last seen Ridgeline Dr and Wilson, Rancho Cucamonga, CA 91739

Reported 4 weeks ago, updated 2 days ago

Loki Male Cat

LOST PawBoost ID: 73325781


Rancho Cucamonga, CA 91739

Bengal male cat, 1 1/2 year old .

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Lost Female Cat last seen Arrollo grande y del rosa, Colton, CA 92324

Reported 1 year ago, updated 2 days ago

Luna Female Cat

LOST PawBoost ID: 71950298


Colton, CA 92324

Shes a grey and white tabby. She has one black eye and the other eye is Green. One of her ears is cut.

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Lost Female Cat last seen Azusa Avenue, West Covina, CA 91791

Reported 3 months ago, updated 2 days ago

Khloe Female Cat

LOST PawBoost ID: 73062223


West Covina, CA 91791

Khloe, calico with spot on nose

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Lost Male Cat last seen E Payson street, Azusa, CA 91702

Reported 2 days ago

Kitty Male Cat

LOST PawBoost ID: 73416864


Azusa, CA 91702

Beige/orange tabby cat with yellow/green eyes. Darker stripes along his legs and back, with a lighter tummy.

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Lost Female Cat last seen Canyon mist lane and Lost canyon road, Anaheim, CA 92808

Reported 1 month ago, updated 2 days ago

Zoya Female Cat

LOST PawBoost ID: 73276042


Anaheim, CA 92808

Gray black Savannah talkative cat

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Lost Female Cat last seen valley & cypress, Colton, CA 92324

Reported 2 weeks ago, updated 2 days ago

Lucy Female Cat

LOST PawBoost ID: 73359296


Colton, CA 92324

black and white

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Lost Male Cat last seen Caljaco, Perris, CA 92570

Reported 3 weeks ago, updated 3 days ago

Maruchan Male Cat

LOST PawBoost ID: 73345177


Perris, CA 92570

Orange white cat

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Lost Male Cat last seen G st and San Antonio., Ontario, CA 91762

Reported 1 year ago, updated 3 days ago

One Eyed Jack Male Cat

LOST PawBoost ID: 71522215


Ontario, CA 91762

Large, but not huge, Black and white cat with one eye.

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Lost Male Cat last seen E calle pantano, Anaheim ca 92807, Anaheim, CA 92807

Reported 1 week ago, updated 3 days ago

Boots Male Cat

LOST PawBoost ID: 73386998


Anaheim, CA 92807

Tuxedo cat with white on all 4 paws. Last seen with animal print bow-tie collar and a fish shaped name tag that said pest control

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Lost Male Cat last seen Barton Rd & Alessandro Blvd, Riverside, CA 92508

Reported 3 days ago

Grey Male Cat

LOST PawBoost ID: 73415488


Riverside, CA 92508

Tuxedo grey and white

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Lost Male Cat last seen Earlham and Jordan, Orange, CA 92869

Reported 2 weeks ago, updated 3 days ago

Gerald Male Cat

LOST PawBoost ID: 73378807


Orange, CA 92869

Grey Tabby cat

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Lost Male Cat last seen Calle Barcelona, Rowland Heights, CA 91748

Reported 3 days ago

Bruno Male Cat

LOST PawBoost ID: 73415224


Rowland Heights, CA 91748

Bruno it’s a lovely cat. Love the kids every morning h was waiting for them to go to school.

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Lost Male Cat last seen Ravenwood and Cable lane, Perris, CA 92570

Reported 1 month ago, updated 3 days ago

Kenny Male Cat

LOST PawBoost ID: 73269880


Perris, CA 92570

Gray and silver tabby

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Lost Female Cat last seen Brea Blvd and Elm St., Brea, CA 92821

Reported 3 days ago

Reese Female Cat

LOST PawBoost ID: 73414964


Brea, CA 92821

Brown and tan tabby with spots as well as stripes almost looks part bengal sometimes she’s very friendly and very petite for an adult cat

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Lost Male Cat last seen Jurupa Ave. /pacific Ave., Fontana, CA 92337

Reported 1 month ago, updated 3 days ago

Coco Male Cat

LOST PawBoost ID: 73302669


Fontana, CA 92337

White with gray but mainly white his tail it’s grey with like white stripes heavier he is super big he is 2 years and 5 months but super long and heavy like around 20 pounds his is super scared of anything or anyone he is super shy but really lovable he loves to eat and he enjoys playing with anything that is like a stick.. his nick name is (goigoo) Jurupa Ave, and Paciffic Ave last seen 08/16/26

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Lost Male Cat last seen phillips blvd, Pomona, CA 91766

Reported 2 months ago, updated 3 days ago

Lone Male Cat

LOST PawBoost ID: 73206075


Pomona, CA 91766

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Lost Male Cat last seen Millard dr, Riverside, CA 92503, Riverside, CA 92503

Reported 3 weeks ago, updated 3 days ago

Cosmos Male Cat

LOST PawBoost ID: 73338114


Riverside, CA 92503

Grayish fur on top with black stripes and bottom of the fur is 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 – 2,315,233 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.