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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 sierra lakes golf club on colonial drive, Fontana, CA 92336

Reported 3 weeks ago, updated 2 weeks ago

Kenji Male Cat

LOST PawBoost ID: 73534129


Fontana, CA 92336

orange and white tabby. 2 years old but pretty big. green eyes

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Lost Female Cat last seen Riverside and Hamner, Ontario, CA 91761

Reported 2 weeks ago

Beverly Female Cat

LOST PawBoost ID: 73573453


Ontario, CA 91761

All white with some grey on neck and tail

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Lost Male Cat last seen Foothill, Fontana, CA 92376

Reported 2 weeks ago

Xander Male Cat

LOST PawBoost ID: 73573429


Fontana, CA 92376

He is a gray and white cat has Big Baby Blue eyes and has a stubby tail . He isn't an outside cat hes very friendly. And so kind and gentle please help me find him if someone has him please give him back

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Lost Female Cat last seen Randall Ave and South Cactus Ave, Rialto, CA 92376

Reported 4 weeks ago, updated 2 weeks ago

Giana Female Cat

LOST PawBoost ID: 73500792


Rialto, CA 92376

grey tabby, light grey/dark grey stripes

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Lost Male Cat last seen Colima and Fullerton, Rowland Heights, CA 91748

Reported 8 months ago, updated 2 weeks ago

Binx Male Cat

LOST PawBoost ID: 72621901


Rowland Heights, CA 91748

Right ear clipped. He has fur growing back in on his left cheek following a recent injury that is healing (not pictured).

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Lost Male Cat last seen Larkvane Camino bello, Rowland Heights, CA 91748

Reported 3 weeks ago, updated 2 weeks ago

Mr O (peach) Male Cat

LOST PawBoost ID: 73542538


Rowland Heights, CA 91748

Orange tabby, friendly. Almost 3 years old

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Lost Female Cat last seen Orchard and N Caliente, Placentia, CA 92870

Reported 2 weeks ago

Muffin Female Cat

LOST PawBoost ID: 73571986


Placentia, CA 92870

Grey

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Lost Male Cat last seen Elder and Brewster, Moreno Valley, CA 92555

Reported 1 month ago, updated 2 weeks ago

ZorroBandit Male Cat

LOST PawBoost ID: 73457206


Moreno Valley, CA 92555

Snowshoe siamese

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Lost Female Cat last seen Westward Drive and Ocotillo Drive, Fontana, CA 92337

Reported 4 months ago, updated 2 weeks ago

Astrid Female Cat

LOST PawBoost ID: 73055842


Fontana, CA 92337

Astrid is a senior kitty with green eyes and a white spot on her chest. She is a domestic shorthair with grey and black stripes. Her tail is shorter than average and she looks like a mini bobcat. She is extremely she, but very sweet once she gets to know you. She is on a diet for her kidney and needs plenty of fresh water.

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Lost Female Cat last seen Wall and 14th near the DMV, San Bernardino, CA 92401

Reported 4 weeks ago, updated 2 weeks ago

Kira Female Cat

LOST PawBoost ID: 73496692


San Bernardino, CA 92401

Splotchy Tuxedo

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Lost Female Cat last seen in our home in delphine and malvern, Fullerton, CA 92833

Reported 2 weeks ago

Komori Female Cat

LOST PawBoost ID: 73569813


Fullerton, CA 92833

black with big green eyes. has an amber undercoat under the sun

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Lost Male Cat last seen Vermont route 66 joys mobile home park, Glendora, CA 91740

Reported 2 weeks ago

Chris Male Cat

LOST PawBoost ID: 73569805


Glendora, CA 91740

Big cat grey white with stripes

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Lost Female Cat last seen Mission Blvd, Mountain Ave, Ontario, CA 91762

Reported 2 months ago, updated 2 weeks ago

Savannah Female Cat

LOST PawBoost ID: 73352846


Ontario, CA 91762

Spotted/tabby coat, green eyes, white chin & paws. Wearing a collar with a pink tracker pod.

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Lost Female Cat last seen Cooley ave and Mountain View Ave., San Bernardino, CA 92408

Reported 4 weeks ago, updated 2 weeks ago

Paloma Female Cat

LOST PawBoost ID: 73494729


San Bernardino, CA 92408

Fluffy white cat with a grey tail and grey ears

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Lost Male Cat last seen Brea Canyon Cutoff Rd., Rowland Heights, CA 91748

Reported 2 weeks ago

Kat Male Cat

LOST PawBoost ID: 73568807


Rowland Heights, CA 91748

Small cat, 20 yr, only 1 tooth, friendly.

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Lost Female Cat last seen Glendora Ave and foothill, Monrovia, CA 91016

Reported 8 months ago, updated 2 weeks ago

Snuggles Female Cat

LOST PawBoost ID: 72669598


Monrovia, CA 91016

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Lost Female Cat last seen 5th and Del Rosa, San Bernardino, CA 92410

Reported 2 weeks ago

Winnie Female Cat

LOST PawBoost ID: 73568397


San Bernardino, CA 92410

Tabby with lavender collar on. Left eye watery

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Lost Male Cat last seen San Dimas Canyon Rd. / Bonita / Juanita, San Dimas, CA 91773

Reported 2 weeks ago, updated 2 weeks ago

Oliver Male Cat

LOST PawBoost ID: 73557464


San Dimas, CA 91773

Orange, long hair Tabby

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Lost Male Cat last seen sunset crossing & north del sol by diamond point elementary, Diamond Bar, CA 91765

Reported 2 months ago, updated 2 weeks ago

Wispy Male Cat

LOST PawBoost ID: 73380553


Diamond Bar, CA 91765

black cat with green eyes

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Lost Female Cat last seen In front of my hse which is by Laguna lake, Fullerton, CA 92835

Reported 1 month ago, updated 2 weeks ago

Star Female Cat

LOST PawBoost ID: 73438529


Fullerton, CA 92835

White long hair with some grey on her face and tail and ears.

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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.