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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 Claremont, Ottawa Drive and Niagara Ave., Claremont, CA 91711

Reported 6 months ago, updated 7 days ago

Felix Male Cat

LOST PawBoost ID: 72880109


Claremont, CA 91711

Black and white cat.

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Lost Male Cat last seen Near st jurupa valley ca, Riverside, CA 92509

Reported 3 weeks ago, updated 7 days ago

Munchking Male Cat

LOST PawBoost ID: 73520095


Riverside, CA 92509

Tuxido orange

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Lost Male Cat last seen Near Jurupa Ave, Fontana, CA 92337, Fontana, CA 92337

Reported 3 months ago, updated 7 days ago

Coco Male Cat

LOST PawBoost ID: 73274997


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 time we saw

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Lost Male Cat last seen California Ave and Arlington, Riverside, CA 92504

Reported 1 year ago, updated 7 days ago

Circuit Male Cat

LOST PawBoost ID: 72212060


Riverside, CA 92504

Dark brown tabby with black swirly pattern on his sides

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Lost Male Cat last seen pacific st, Highland, CA 92346

Reported 1 month ago, updated 1 week ago

Finn Male Cat

LOST PawBoost ID: 73488607


Highland, CA 92346

Chubby cheeks back paws are white

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Lost Male Cat last seen Peyton Drive and Grand Avenue,, Chino Hills, CA 91709

Reported 1 week ago, updated 1 week ago

Tito Male Cat

LOST PawBoost ID: 73581926


Chino Hills, CA 91709

Tuxedo cat Left leg white like a cast Black nose Plade collar with bow paws have some black specks

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Lost Male Cat last seen Tyler, Riverside, CA 92503

Reported 1 week ago

Blondie Male Cat

LOST PawBoost ID: 73590219


Riverside, CA 92503

It looks like he has a little orange cat on his back hugging him , very friendly and cuddly. Has random little orange spot behind right ear neck area

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Lost Male Cat last seen Hidden valley and Parkview, Corona, CA 92879

Reported 1 week ago

Arlo Male Cat

LOST PawBoost ID: 73590208


Corona, CA 92879

Arlo is a Russian blue weighs 14lbs has a brown collar.

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Lost Male Cat last seen 6th and Pine Street, Riverside, CA 92501

Reported 2 months ago, updated 1 week ago

Meatball Male Cat

LOST PawBoost ID: 73333027


Riverside, CA 92501

All black cat. Yellow eyes with tiny white patch on chest. Medium length fur with fluffy tail.

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Lost Male Cat last seen 287e Jackson st, Rialto, CA 92376

Reported 1 week ago

Benito Male Cat

LOST PawBoost ID: 73589864


Rialto, CA 92376

Small white cat with gray spots with green eyes and a fluffy

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Lost Female Cat last seen Coyote Canyon Elem School, Rancho Cucamonga, CA 91730

Reported 1 month ago, updated 1 week ago

Goldie Female Cat

LOST PawBoost ID: 73487009


Rancho Cucamonga, CA 91730

Orange Cat, spayed

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Lost Female Cat last seen Cloud haven dr and Perris blvd, Moreno Valley, CA 92557

Reported 9 months ago, updated 1 week ago

Mama Female Cat

LOST PawBoost ID: 72519849


Moreno Valley, CA 92557

Female, not spayed or micro-chipped. She is a grey, black, white tabby. Very skittish of people she doesn't know. Has a sweet sounding meow. I miss her so badly, please help me find her!

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Lost Male Cat last seen Lark Ellen and Cameron Next to the park, West Covina, CA 91791

Reported 4 months ago, updated 1 week ago

Hunter Male Cat

LOST PawBoost ID: 73133683


West Covina, CA 91791

white paws, with a black spot on the back

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Lost Male Cat last seen Terra Vista/ Spruce, Rancho Cucamonga, CA 91730

Reported 2 months ago, updated 1 week ago

Habibi Male Cat

LOST PawBoost ID: 73426244


Rancho Cucamonga, CA 91730

Mix Siamese, Blue eyes, cream colored with dark tail and highlights

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Lost Male Cat last seen Mayflower and Standish St, Mayflower Village, CA 91006

Reported 1 month ago, updated 1 week ago

Max Male Cat

LOST PawBoost ID: 73454489


Mayflower Village, CA 91006

Black and grey swirly pattern 7 months of age with a white chest

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Lost Male Cat last seen Figwood Dr and Springoaks Ct. S. Fontana, CA, Fontana, CA 92337

Reported 9 months ago, updated 1 week ago

Baby Male Cat

LOST PawBoost ID: 72539368


Fontana, CA 92337

Orange W/Fluffy orange and darker orange Strip Tail

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Lost Female Cat last seen Flying J on SLOVER AVE BY CHERRY AVE, Fontana, CA 92337

Reported 1 year ago, updated 1 week ago

Nala Female Cat

LOST PawBoost ID: 72027298


Fontana, CA 92337

Domestic long-medium hair black and white with upside down heart on nose, broken tail "bent down at tip" She has a chocolate color in the sun. NOT A SMALL CAT 18" HI & 3.5 FT LONG Had collar and tag w/bell when escaped from my semi. Call Sharp Transportation Logan UT (4*3*5)227*0891 Tk8115 And they will call me

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Lost Female Cat last seen Puddingstone Drive, San Dimas, CA 91773

Reported 2 months ago, updated 1 week ago

Bigglesworth Female Cat

LOST PawBoost ID: 73315994


San Dimas, CA 91773

Large white cat with black tail and black face marking. Around 14-18 lbs. very friendly, always wants to eat and play. REWARD IF FOUND

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Lost Male Cat last seen adelle & olive st, Anaheim, CA 92805

Reported 1 week ago

Cooper Male Cat

LOST PawBoost ID: 73586527


Anaheim, CA 92805

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Lost Female Cat last seen Coastal transport llc 9448 Richmond Pl unit A Rancho Cucamonga, CA 91730, Rancho Cucamonga, CA 91730

Reported 2 years ago, updated 1 week ago

Shunashka Female Cat

LOST PawBoost ID: 70388802


Rancho Cucamonga, CA 91730

A short hair black cat, she has a tiny bump on her nose, also few white hairs on neck and lower belly.

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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 – 2,350,983 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.