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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.

869 lost cats in your search

Lost Female Cat last seen Eucalyptus St , Rialto, CA 92376

Reported 1 month ago, updated 1 month ago

Lulu Female Cat

LOST PawBoost ID: 72819439


Rialto, CA 92376

Siames

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Lost Male Cat last seen Near W Monterey Ave, Pomona, CA 91768

Reported 1 month ago

Yoshi Male Cat

LOST PawBoost ID: 72827117


Pomona, CA 91768

Black tuxedo cat with white spot on his chest

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Lost Female Cat last seen Near W Monterey Ave, Pomona, CA 91768

Reported 1 month ago

Luna Female Cat

LOST PawBoost ID: 72827114


Pomona, CA 91768

Gray cat with white chest and belly

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Lost Female Cat last seen Foothill Blvd and N Country Club, Glendora, CA 91741

Reported 1 month ago

Pumpkin Female Cat

LOST PawBoost ID: 72824502


Glendora, CA 91741

Black cat with small white chest hairs. Skittish.

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Lost Male Cat last seen Victoria Woods apmts , Rancho Cucamonga, CA 91739

Reported 2 months ago, updated 1 month ago

Chucho Male Cat

LOST PawBoost ID: 72748868


Rancho Cucamonga, CA 91739

Grey tabby. Medium hair. About 9.5lbs. Minor cow-hawked

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Lost Male Cat last seen La Cardena Street near the ARCO off Stephens, Riverside, CA 92501

Reported 1 month ago

Keton Male Cat

LOST PawBoost ID: 72822988


Riverside, CA 92501

Short haired striped orange ginger cat. Very quiet and accustomed to humans. Striped tale l.⁴Indoor/outdoor cat. Is our workshop cat.

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Lost Female Cat last seen Euclid & west, Fullerton, CA 92833

Reported 3 months ago, updated 1 month ago

Bella Female Cat

LOST PawBoost ID: 72661509


Fullerton, CA 92833

White cat with blue eyes

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Lost Female Cat last seen Maryess st, San Bernardino, CA 92410

Reported 1 month ago

Casper Female Cat

LOST PawBoost ID: 72822404


San Bernardino, CA 92410

White,gray and alittle black with blue eyes and it’s right eye is messed up alittle bit

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Lost Male Cat last seen Lucerne, orleans, Placentia, CA 92870

Reported 1 month ago

Boots Male Cat

LOST PawBoost ID: 72820861


Placentia, CA 92870

Black with white nose, mouth area and bottom of legs

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Lost Male Cat last seen Blanchard Ave and Hawthorn , Fontana, CA 92335

Reported 1 month ago

Blacky Male Cat

LOST PawBoost ID: 72820741


Fontana, CA 92335

All black medium long hair

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Lost Female Cat last seen She lives on Dovehill Drive but was last seen on Cold Spring Circle, El Sobrante, CA 92503

Reported 1 month ago, updated 1 month ago

Rumi Female Cat

LOST PawBoost ID: 72793912


El Sobrante, CA 92503

She has a light blue collar on with an AirTag, yellow eyes, and is brown.

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Lost Male Cat last seen Arthur Ave、Las Flores 、Londen Ave & Santa Anita Ave, Arcadia, CA, Arcadia, CA 91006

Reported 1 month ago

Clover Male Cat

LOST PawBoost ID: 72819824


Arcadia, CA 91006

Gray and white male cat named Clover. He is neutered and about 8.5 years old. He is shy and may be scared, so he might hide and not come when called. He is not wearing a red collar anymore. Last seen near Arthur Ave and Santa Anita area in Arcadia. Please do not chase or approach quickly. If seen, please contact me immediately. Thank you.

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Lost Female Cat last seen Shamrock  and olive, Monrovia, CA 91016

Reported 1 month ago

Debra Female Cat

LOST PawBoost ID: 72819776


Monrovia, CA 91016

Short hair

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Lost Male Cat last seen Left from a window opened to the background to the bushes behind our house, Chino Hills, CA 91709

Reported 5 months ago, updated 1 month ago

Subori Male Cat

LOST PawBoost ID: 72387421


Chino Hills, CA 91709

Name: Subori Male Neutered Domestic Shorthair Brown/Black stipes and spots (Mackerel tabby) Shy around strangers 4 years old

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Lost Female Cat last seen Magnolia and walnut , Chino, CA 91710

Reported 2 months ago, updated 1 month ago

Penny Female Cat

LOST PawBoost ID: 72737442


Chino, CA 91710

Calico female, average size 2 years old

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Lost Female Cat last seen Train tracks, central in between 8th and 9th, Upland, CA 91786

Reported 1 year ago, updated 1 month ago

Mamas Female Cat

LOST PawBoost ID: 71291086


Upland, CA 91786

Black long haired cat, sweet but timid and to identify her more accurately, there's a bump on her nose, she has green eyes, she like temptation kitty treats and will most definitely approach you, she very good at hiding, please feel free to contact me at anytime, please any information any kind at all will help, and please I ask for your help from the bottom not even bottom, but from my whole heart and soul please help me bring my baby girl

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Lost Male Cat last seen Forestdale Ave & Mauna Loa, Glendora, CA 91740

Reported 1 month ago

Otherwise Male Cat

LOST PawBoost ID: 72815864


Glendora, CA 91740

White chest tuft, small white goatee that doesnt cover his whole chin, two white back socks and all silvery gray hair everywhere else. Medium haired male cat. Big bushy squirrel tail. Tiny muted meow.

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Lost Female Cat last seen W meyers rd, San Bernardino, CA 92407

Reported 1 month ago

Lana Female Cat

LOST PawBoost ID: 72815522


San Bernardino, CA 92407

Orange & white

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Lost Female Cat last seen Near Pepper and Eucalyptus , Rialto, CA 92376

Reported 2 months ago, updated 1 month ago

Lulu Female Cat

LOST PawBoost ID: 72783638


Rialto, CA 92376

Siamese, White with Black spots

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Lost Female Cat last seen outside, Fontana, CA 92336

Reported 1 month ago

Starki Female Cat

LOST PawBoost ID: 72814549


Fontana, CA 92336

small little tail

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Lost Cat Data for Ontario, CA

There are 869 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 – 2,229,960 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.