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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 Female Cat last seen Azusa Ave, La Puente, CA 91744

Reported 3 weeks ago

Winter Female Cat

LOST PawBoost ID: 73539337


La Puente, CA 91744

White Female Cat, 2 yrs old, one eye is blue and other green

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Lost Male Cat last seen Williamson Avenue and Commonwealth, Fullerton, CA 92833

Reported 5 months ago, updated 3 weeks ago

Thunder Male Cat

LOST PawBoost ID: 72931878


Fullerton, CA 92833

Black, light brown mostly around his chest with blue eyes.

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Lost Male Cat last seen E washington Ave and Via lardo ave, Orange, CA 92869

Reported 1 month ago, updated 3 weeks ago

Simba Male Cat

LOST PawBoost ID: 73431653


Orange, CA 92869

He has a light brown spot on his paw

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Lost Male Cat last seen Monterey, Pomona, CA 91767

Reported 1 year ago, updated 3 weeks ago

Catnip Male Cat

LOST PawBoost ID: 71692291


Pomona, CA 91767

On his right hind leg is a black spot, and also he has some dwarfism.

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Lost Female Cat last seen S riverside ave between Randal and San Bernardino, Rialto, CA 92316

Reported 12 months ago, updated 3 weeks ago

Mila Female Cat

LOST PawBoost ID: 72247308


Rialto, CA 92316

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Lost Female Cat last seen Bauer Dr, Pass and Covina Rd, Maplegrove St, West Covina, CA 91792

Reported 3 weeks ago, updated 3 weeks ago

Luna Female Cat

LOST PawBoost ID: 73526753


West Covina, CA 91792

Multicolored Ragdoll with soft blue eyes. Mint collar with a gray flea collar as well.

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Lost Male Cat last seen Arlington, Riverside, CA 92505

Reported 1 month ago, updated 3 weeks ago

Simba Male Cat

LOST PawBoost ID: 73436839


Riverside, CA 92505

Medium/short hair length

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Lost Male Cat last seen West La Cadena, Riverside, CA 92501

Reported 2 months ago, updated 3 weeks ago

Smithers Male Cat

LOST PawBoost ID: 73417776


Riverside, CA 92501

Red collar

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Lost Male Cat last seen Yellowstone and Mountainside, Corona, CA 92878

Reported 3 weeks ago

Blubear Male Cat

LOST PawBoost ID: 73535021


Corona, CA 92878

All grey with green eyes and a skinny tail, jiggly belly, a little lanky with dark nose, not too much fur, and skittish (meow is not low nor high)

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Lost Male Cat last seen Electric and 49th, San Bernardino, CA 92407

Reported 3 weeks ago

Kilo Male Cat

LOST PawBoost ID: 73534951


San Bernardino, CA 92407

Scar on nose

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Lost Unknown Cat last seen Arrow and grove, Rancho Cucamonga, CA 91730

Reported 5 months ago, updated 3 weeks ago

Mama Kitty Unknown Cat

LOST PawBoost ID: 73029033


Rancho Cucamonga, CA 91730

Small gray cat. Is older and not welcoming. Will be scared of people

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Lost Male Cat last seen Mescal and Cantaria, Rowland Heights, CA 91748

Reported 3 years ago, updated 3 weeks ago

Stretchy Male Cat

LOST PawBoost ID: 70074511


Rowland Heights, CA 91748

Solid black. Had a couple of white whiskers last time I saw him. Medium sized adult. Eight years old.

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Lost Unknown Cat last seen Maryville drive, Walnut, CA 91789

Reported 4 weeks ago, updated 3 weeks ago

Russio Unknown Cat

LOST PawBoost ID: 73494851


Walnut, CA 91789

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

Reported 2 months ago, updated 3 weeks 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 Congress st and, San Bernardino, CA 92410

Reported 1 month ago, updated 3 weeks ago

Chapo Male Cat

LOST PawBoost ID: 73473276


San Bernardino, CA 92410

Tuxido cat has a black spot in his nose

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Lost Female Cat last seen Aliss, Grand Terrace, CA 92313

Reported 3 months ago, updated 3 weeks ago

Harley Female Cat

LOST PawBoost ID: 73299201


Grand Terrace, CA 92313

Very friendly never leaves the yard

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Lost Male Cat last seen N Parkside dr. And Dst, Ontario, CA 91764

Reported 2 months ago, updated 3 weeks ago

Auto Zone Male Cat

LOST PawBoost ID: 73397495


Ontario, CA 91764

All black

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Lost Female Cat last seen By Spirit of texas area, San Bernardino, CA 92346

Reported 3 weeks ago, updated 3 weeks ago

Willow Female Cat

LOST PawBoost ID: 73521528


San Bernardino, CA 92346

Tuxedo cat, white spot near lips. Not wearing collar

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Lost Male Cat last seen W Norman, Arcadia, CA 91007

Reported 3 weeks ago

Boss Male Cat

LOST PawBoost ID: 73530266


Arcadia, CA 91007

Lost cat: Light cream-orange tabby longhair, white paws, pink nose.

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Lost Male Cat last seen glenview road and merced, West Covina, West Covina, CA 91791

Reported 3 months ago, updated 3 weeks ago

Leo Male Cat

LOST PawBoost ID: 73253477


West Covina, CA 91791

leopard spots with black strips

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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 – 2,351,022 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.