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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.

874 lost cats in your search

Lost Female Cat last seen Ramona Pipeline, Chino, CA 91710

Reported 2 months ago, updated 21 mins ago

Mittens Female Cat

LOST PawBoost ID: 72735280


Chino, CA 91710

Grey with a short tail

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Lost Female Cat last seen Parkside dr, San Bernardino, CA 92404

Reported 2 weeks ago, updated 48 mins ago

Pelusa Female Cat

LOST PawBoost ID: 72901343


San Bernardino, CA 92404

Very fluffy with a long fluffy tail as well. Yellow eyes with color on her eyebrows. She has white fur on her chest, she is a gray multicolored cat. She's a year old.

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Lost Female Cat last seen Near coyote springs drive diamond bar CA 91765, Diamond Bar, CA 91765

Reported 2 months ago, updated 2 hours ago

Bella Female Cat

LOST PawBoost ID: 72753342


Diamond Bar, CA 91765

Brown with spotted coat. very friendly and smart.

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Lost Male Cat last seen Hacienda Blvd and Colima Rd, Hacienda Heights, CA 91745

Reported 11 months ago, updated 3 hours ago

Baby Kitty Male Cat

LOST PawBoost ID: 71740192


Hacienda Heights, CA 91745

Light color Siamese about 6years old, Neutered, comes to Baby Kitty, Very scared he's 1/2 wild & 1/2 tame you can pet him but can't pick him up or he freaks out.

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Lost Female Cat last seen Box Canyon Park, Yorba Linda, CA 92887

Reported 3 hours ago

Milky Female Cat

LOST PawBoost ID: 72966066


Yorba Linda, CA 92887

White cat with blue eyes, long fur.

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Lost Male Cat last seen Boulder and Atlantic , Highland, CA 92346

Reported 6 months ago, updated 4 hours ago

Tuna Male Cat

LOST PawBoost ID: 72368771


Highland, CA 92346

Tuxedo cat

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Lost Female Cat last seen Bonita Ave and Moss Circle, La Verne, CA 91750

Reported 4 hours ago

Muffin Female Cat

LOST PawBoost ID: 72965886


La Verne, CA 91750

Fluffy Tabby - approximately 6 pounds - did not come home Sunday night. She is sadly very skittish and took a long time gaining her trust. I live on Bonita Ave near moss circle / fulton road.

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Lost Female Cat last seen woodgate and elmhurst ct., Yorba Linda, CA 92886

Reported 1 month ago, updated 5 hours ago

Mabel Female Cat

LOST PawBoost ID: 72808513


Yorba Linda, CA 92886

black and white medium size

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Lost Female Cat last seen W 7th st, San Bernardino, CA 92410

Reported 2 weeks ago, updated 6 hours ago

Maxine Female Cat

LOST PawBoost ID: 72908425


San Bernardino, CA 92410

Calico female, purple collar with star bell.

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Lost Female Cat last seen Bella Strada Dr, Fontana, CA 92336

Reported 2 months ago, updated 7 hours ago

Luna Female Cat

LOST PawBoost ID: 72759392


Fontana, CA 92336

Black and a white cat with a pink and white bow collar

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Lost Female Cat last seen HASTER AND ORANGEWOOD IN ANAHEIM, Anaheim, CA 92815

Reported 4 weeks ago, updated 12 hours ago

Unknown Female Cat

LOST PawBoost ID: 72854153


Anaheim, CA 92815

COLLAR CHECKERBOARD > LIGHT GREEN WITH WHITE.

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Lost Male Cat last seen Hemlock and walnut , Fontana, CA 92336

Reported 2 weeks ago, updated 14 hours ago

Huzbullah Male Cat

LOST PawBoost ID: 72923357


Fontana, CA 92336

White and orange cat

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Lost Female Cat last seen Rockyway and Vineland , Baldwin Park, CA 91706

Reported 3 weeks ago, updated 15 hours ago

Bonie Female Cat

LOST PawBoost ID: 72870925


Baldwin Park, CA 91706

Female orange tabby with white chest.

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Lost Female Cat last seen Timber Ridge road, Yorba Linda, CA 92886

Reported 1 month ago, updated 16 hours ago

Lucky Female Cat

LOST PawBoost ID: 72825927


Yorba Linda, CA 92886

Black cat, about 2 years old, stray pet

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Lost Male Cat last seen Whistler and De Berry Street, Grand Terrace, CA 92313

Reported 4 months ago, updated 16 hours ago

Lucky Male Cat

LOST PawBoost ID: 72493882


Grand Terrace, CA 92313

White and black. Blue eyes

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Lost Female Cat last seen Between Shamrock and Mountain, on E Lime Ave. , Monrovia, CA 91016

Reported 2 weeks ago, updated 16 hours ago

Dott Female Cat

LOST PawBoost ID: 72907844


Monrovia, CA 91016

Tuxedo cat, quite slight in nature.

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Lost Male Cat last seen Mountain High Dr & Hillcrest Dr, Fontana, CA 92337

Reported 2 weeks ago, updated 16 hours ago

Milo Male Cat

LOST PawBoost ID: 72907779


Fontana, CA 92337

Orange tabby cat

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Lost Female Cat last seen Hamilton Pomona Ca , Pomona, CA 91799

Reported 3 days ago, updated 17 hours ago

Hooper Female Cat

LOST PawBoost ID: 72953985


Pomona, CA 91799

Wearing a purple fleas collar and a pink bow collar.

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Lost Female Cat last seen Sunny mead ranch, Moreno Valley, CA 92557

Reported 1 month ago, updated 17 hours ago

Kashmere Female Cat

LOST PawBoost ID: 72845539


Moreno Valley, CA 92557

She's crossed eyed red collar shes small

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Lost Male Cat last seen 17th St & Prospect , Tustin, CA 92780

Reported 2 weeks ago, updated 17 hours ago

Oreo Male Cat

LOST PawBoost ID: 72897808


Tustin, CA 92780

Black and White cat

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Lost Cat Data for Ontario, CA

There are 874 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 – 2,229,374 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.