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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.

884 lost cats in your search

Lost Male Cat last seen Spring Mountain Ranch, Riverside, CA 92507

Reported 10 months ago, updated 6 days ago

Binx Male Cat

LOST PawBoost ID: 72254259


Riverside, CA 92507

Black with 3 white spots on neck, chest, groin.

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Lost Female Cat last seen Near s hambledon ave la puente, La Puente, CA 91744

Reported 2 months ago, updated 6 days ago

Luna Female Cat

LOST PawBoost ID: 73221801


La Puente, CA 91744

Black tuxedo

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Lost Female Cat last seen Azusa & Amar, West Covina, CA 91792

Reported 6 days ago

Bella Female Cat

LOST PawBoost ID: 73401575


West Covina, CA 91792

Dark grey tabby

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Lost Male Cat last seen sand canyon and stone canyon in Brea, Brea, CA 92821

Reported 1 week ago, updated 6 days ago

Lux Male Cat

LOST PawBoost ID: 73393007


Brea, CA 92821

Grey Mainecoon

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Lost Male Cat last seen Kinnow/Limecrest, Riverside, CA 92508

Reported 3 months ago, updated 6 days ago

Leo Male Cat

LOST PawBoost ID: 73097919


Riverside, CA 92508

Neutered black cat

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Lost Male Cat last seen Etiwanda ave between Arrow & Foothill at Victoria Woods apts, Rancho Cucamonga, CA 91739

Reported 4 months ago, updated 6 days ago

Snoopy Male Cat

LOST PawBoost ID: 72920622


Rancho Cucamonga, CA 91739

Siamese cat

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Lost Male Cat last seen Mary Helen St, Corona, CA 92879

Reported 5 months ago, updated 6 days ago

Bubba Male Cat

LOST PawBoost ID: 72858223


Corona, CA 92879

Grey Tabby, he is microchipped, he probably still has a tiny tint of blue in the tail, can’t notice it, he has a chipped fang, he doesn’t like other cats, he can be sociable or really skittish, he replies to the name Bubba, Hubba Bubba, or even with the smell of fish or salmon, he loves scratches and can go on the shoulder, he has a collar on, with skulls, he has his name tag, a tracker that stopped working and a yellow microchip thing on the collar, unless it came off

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Lost Male Cat last seen New England Dr, Moreno Valley, CA, Moreno Valley, CA 92553

Reported 3 months ago, updated 6 days ago

Jupiter Male Cat

LOST PawBoost ID: 73028705


Moreno Valley, CA 92553

Orange tabby, 3 Black spots in his nose, Green eyes, Neutered

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Lost Male Cat last seen Ramona pkwy, Baldwin Park, CA 91706

Reported 1 month ago, updated 7 days ago

Cheeto Santino Male Cat

LOST PawBoost ID: 73275850


Baldwin Park, CA 91706

Orange and white kitty

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Lost Male Cat last seen Corner of Lime and Primrose, Monrovia, CA 91016

Reported 2 years ago, updated 7 days ago

Ringo Male Cat

LOST PawBoost ID: 71104478


Monrovia, CA 91016

Black and white tuxedo with white around his mouth/nose, stomach and paws.

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Lost Female Cat last seen Bon View, Philadelphia, Campus Ave, Ontario, CA 91761

Reported 2 months ago, updated 7 days ago

Ivy Female Cat

LOST PawBoost ID: 73213400


Ontario, CA 91761

Fluffy coat & amber eyes

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Lost Male Cat last seen Ellsworth, Moreno Valley, CA 92553

Reported 10 months ago, updated 7 days ago

Groot Male Cat

LOST PawBoost ID: 72295722


Moreno Valley, CA 92553

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Lost Female Cat last seen Hacienda, La Puente, CA 91744

Reported 3 weeks ago, updated 7 days ago

Princess Female Cat

LOST PawBoost ID: 73338208


La Puente, CA 91744

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

Reported 8 months ago, updated 7 days 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 Ramona Pipeline, Chino, CA 91710

Reported 6 months ago, updated 7 days ago

Mittens Female Cat

LOST PawBoost ID: 72735280


Chino, CA 91710

Grey with a short tail

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Lost Male Cat last seen in the neighborhood, Walnut, CA 91789

Reported 2 weeks ago, updated 7 days ago

Tiger Male Cat

LOST PawBoost ID: 73356672


Walnut, CA 91789

beige/white cat, missing back paw, neutered

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Lost Female Cat last seen Near he fitness renaissance parkway Rialto ca, San Bernardino, CA 92408

Reported 2 weeks ago, updated 7 days ago

Monkey Female Cat

LOST PawBoost ID: 73363922


San Bernardino, CA 92408

Maine coin Tortioushell calico green eyes peachy mama big for a girl fluffy tail vocal kidnapped with her sister cheechee by Rialto cops that made it all happen. I didn’t lose my cats and they didn’t run away from me.

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Lost Female Cat last seen Richfield Road, Yorba Linda, CA 92886

Reported 9 months ago, updated 7 days ago

Cleo Female Cat

LOST PawBoost ID: 72428577


Yorba Linda, CA 92886

Short haired tabby

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Lost Male Cat last seen Stephanie Dr & Wednesday Dr, West Covina, CA 91792

Reported 4 months ago, updated 7 days ago

Gingie Male Cat

LOST PawBoost ID: 72944358


West Covina, CA 91792

Orange and white kitty, has a clipped ear and is super sweet and friendly.

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Lost Male Cat last seen Long Leaf Pine Pl, San Bernardino, CA 92407

Reported 3 months ago, updated 1 week ago

Toby Male Cat

LOST PawBoost ID: 73120071


San Bernardino, CA 92407

11 year old neutered black male cat w/ white in his ears, on his chest & stomach. Very sweet cat & answers to his name “Toby” I’ve had him with me since he was born, I’m devastated he’s missing. When you see him. Please call!

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Lost Cat Data for Ontario, CA

There are 884 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 – 2,315,248 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.