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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.

839 lost cats in your search

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

Reported 3 weeks ago, updated 2 weeks ago

Leo Male Cat

LOST PawBoost ID: 73523677


Riverside, CA 92508

Tabby with brown and white colours. Has right paw black mole. 5 years old.

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Lost Male Cat last seen Oakway Ave & Ghentt, San Dimas, CA 91773

Reported 11 months ago, updated 2 weeks ago

Amber Male Cat

LOST PawBoost ID: 72344141


San Dimas, CA 91773

White with a few tan markings; right ear clipped; brown eyes; indoor/outdoor cat

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Lost Male Cat last seen Morton and Chesnut, Rancho Cucamonga, CA 91739

Reported 2 weeks ago

Rocky Male Cat

LOST PawBoost ID: 73565832


Rancho Cucamonga, CA 91739

Orange cat with white fur on stomach, white spot on mouth, long whiskers, white paws.

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Lost Female Cat last seen Macy and Gordon, La Habra, CA 90631

Reported 1 month ago, updated 2 weeks ago

Artemis Female Cat

LOST PawBoost ID: 73472824


La Habra, CA 90631

Calico female adult green eyes medium long hair

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Lost Female Cat last seen Gilbert high area lady works for Auto zone that's ten minutes away, Anaheim, CA 92815

Reported 2 weeks ago, updated 2 weeks ago

Minimoon Female Cat

LOST PawBoost ID: 73556719


Anaheim, CA 92815

Has a white spot on her mouth Will come when you call her Mini She is small for a 9 year old cat but very shiny and a little chubby Tuxedo has white under her lip neck and belly and looks like she has two boots in back pawa and regular shoes in front

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Lost Male Cat last seen Avalon st, newton st, jurupa valley, Jurupa Valley, CA 92509

Reported 4 months ago, updated 2 weeks ago

Pumpkin Male Cat

LOST PawBoost ID: 73084245


Jurupa Valley, CA 92509

Orange shorthair tabby cat

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Lost Male Cat last seen Golden Ave.Stone Wall Drive, Riverside, CA 92505

Reported 2 weeks ago

Cartman Male Cat

LOST PawBoost ID: 73565348


Riverside, CA 92505

Black Cat, Friendly, responds to Little Man. He is usually always napping or eating out of the food bowls for his usual routine. He has white tufts of fur on his upper chest area, and the pelvic area.

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Lost Male Cat last seen La Veta & Center St, Orange, CA 92866

Reported 3 months ago, updated 2 weeks ago

Cesar Male Cat

LOST PawBoost ID: 73253184


Orange, CA 92866

White with gray stripes

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

Reported 4 months ago, updated 2 weeks 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 Near shetland Ln by a blue hse near bold ruler, Riverside, CA 92509

Reported 3 weeks ago, updated 2 weeks ago

Blaze Male Cat

LOST PawBoost ID: 73525195


Riverside, CA 92509

Gray and white he is an indoor cat and has been missing for 5 days no collar he’s not used to be outside!!!

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Lost Male Cat last seen north ridge elementary school neighborhood, Moreno Valley, CA 92557

Reported 2 weeks ago

Chato Male Cat

LOST PawBoost ID: 73565218


Moreno Valley, CA 92557

green eyes grey and white fur

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Lost Male Cat last seen Kendall Drive and little mountain, San Bernardino, CA 92407

Reported 2 weeks ago

Oreo Male Cat

LOST PawBoost ID: 73565196


San Bernardino, CA 92407

Male tabby, green eyes, black under his paws, reddish brown collar

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Lost Female Cat last seen Ironwood st., Moreno Valley, CA 92557

Reported 2 months ago, updated 2 weeks ago

Boomer Female Cat

LOST PawBoost ID: 73413420


Moreno Valley, CA 92557

Black and white

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Lost Male Cat last seen WEST COVINA High School, West Covina, CA 91790

Reported 2 weeks ago

Cliper Male Cat

LOST PawBoost ID: 73565007


West Covina, CA 91790

Dark shiny back with a bit of gray and a yellow underbelly. Green eyes with a bit of brown, relatively large cat with floppy belly. Missing one fang.

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Lost Female Cat last seen Near the Costco loading area, Fontana, CA 92336

Reported 3 weeks ago, updated 2 weeks ago

Michi Female Cat

LOST PawBoost ID: 73523993


Fontana, CA 92336

Grey and white kitten

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Lost Male Cat last seen El Cerrito and Westmont, Riverside, CA 92507

Reported 6 months ago, updated 2 weeks ago

Apollo Male Cat

LOST PawBoost ID: 72823875


Riverside, CA 92507

Black and white Tabby with a shorter, wonky tail

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Lost Male Cat last seen Imperial and Idaho, La Habra, CA 90631

Reported 4 weeks ago, updated 2 weeks ago

Felix Male Cat

LOST PawBoost ID: 73499306


La Habra, CA 90631

Black with white Tuxedo

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Lost Male Cat last seen Downtown Riverside by food lab, Riverside, CA 92501

Reported 1 month ago, updated 2 weeks ago

Zatchee Male Cat

LOST PawBoost ID: 73476001


Riverside, CA 92501

Grey Cat, green eyes, very small bit of white on chest, baby face Friendly responds to "Zachee" & mentions of his "brother" VERY food motivated Hopefully still wearing a black collar with phone #

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Lost Male Cat last seen Gillette Rd, Pomona, CA 91768

Reported 2 weeks ago

Niko Male Cat

LOST PawBoost ID: 73560189


Pomona, CA 91768

All grey Green eyes

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Lost Female Cat last seen Hunter Point rd. Phillips Ranch Pomona, Pomona, CA 91766

Reported 2 weeks ago

Fish Female Cat

LOST PawBoost ID: 73560125


Pomona, CA 91766

Grey, white, a tint of brown and a tint of orange, all paws are white and she had on a light green collar on and she is microchipped

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Lost Cat Data for Ontario, CA

There are 839 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 – 2,351,003 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.