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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 Madison &victoria st, San Bernardino, CA 92411

Reported 2 months ago, updated 3 days ago

Dj Male Cat

LOST PawBoost ID: 73193572


San Bernardino, CA 92411

Had a white collar

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Lost Male Cat last seen Nohl ranch, Anaheim, CA 92807

Reported 6 days ago, updated 3 days ago

Milo Male Cat

LOST PawBoost ID: 73402599


Anaheim, CA 92807

He’s a rag doll but we shaved him.

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Lost Male Cat last seen Blaine st, Riverside, CA 92507

Reported 5 days ago, updated 3 days ago

Bruce Male Cat

LOST PawBoost ID: 73404412


Riverside, CA 92507

Short hair domestic cat/ tuxedo cat

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

Reported 1 month ago, updated 3 days ago

Leo Male Cat

LOST PawBoost ID: 73253477


West Covina, CA 91791

leopard spots with black strips

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Lost Female Cat last seen Sunset and Foothill, Monrovia, CA 91016

Reported 2 months ago, updated 4 days ago

Beep Female Cat

LOST PawBoost ID: 73130047


Monrovia, CA 91016

Female tuxedo cat with heart-shaped white patch on mouth, white chest, and four white feet. Approximately 9 lbs. Reward if found!

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Lost Male Cat last seen Victoria park ln & fairmont way Rancho Cucamonga, Rancho Cucamonga, CA 91701

Reported 3 months ago, updated 4 days ago

Blueyee Male Cat

LOST PawBoost ID: 73091792


Rancho Cucamonga, CA 91701

Fixed mail, orange back, white belly. Fluffy tail.

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Lost Male Cat last seen Grove community dr and gardenia vista, Riverside, CA 92508

Reported 6 days ago, updated 4 days ago

Minnie Male Cat

LOST PawBoost ID: 73403436


Riverside, CA 92508

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Lost Male Cat last seen Near wright ct, Fontana, CA 92336

Reported 4 days ago

Gizmo Male Cat

LOST PawBoost ID: 73411506


Fontana, CA 92336

Black tale and white

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Lost Male Cat last seen Stonecrest Dr, Rancho Cucamonga, CA 91730

Reported 4 months ago, updated 4 days ago

Tuffy Male Cat

LOST PawBoost ID: 72960477


Rancho Cucamonga, CA 91730

Grey fluffy fur with different colors like brown light brown and even a biy black and might be a ragdoll cat, he does appear more brown sometimes

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Lost Male Cat last seen Riverside, Riverside, CA 92501

Reported 2 months ago, updated 4 days ago

Miko Male Cat

LOST PawBoost ID: 73206026


Riverside, CA 92501

Black and white

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Lost Male Cat last seen N San Antonio Ave & !6th St, Upland, Upland, CA 91784

Reported 3 years ago, updated 4 days ago

Snickers Male Cat

LOST PawBoost ID: 69679663


Upland, CA 91784

Snickers is still missing and is greatly missed. He is very timid and sweet. I have been socializing him for about 9 months. He just started coming inside for a brief periods. He loves other cats and dogs. Unfortunately, not neutered as of yet.

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Lost Male Cat last seen Laxford St. & S. Vecino Ave, Glendora, CA 91740

Reported 2 weeks ago, updated 4 days ago

Rocky Male Cat

LOST PawBoost ID: 73380986


Glendora, CA 91740

Black short haired with a light white spot on his chest

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Lost Male Cat last seen Mountain and 14th, Upland, CA 91786

Reported 5 months ago, updated 4 days ago

Ziggy Male Cat

LOST PawBoost ID: 72768498


Upland, CA 91786

Tuxedo

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Lost Female Cat last seen James Ave, Rialto, CA 92376

Reported 4 weeks ago, updated 4 days ago

Cookie Female Cat

LOST PawBoost ID: 73325695


Rialto, CA 92376

Grey Tabby with red spots on her hind leg, spotted nose

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Lost Female Cat last seen Buena Vista St, Placentia, CA 92811

Reported 2 months ago, updated 4 days ago

Pepper Female Cat

LOST PawBoost ID: 73170197


Placentia, CA 92811

Brown tabby, she has a white chest and three of her paws are white.

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Lost Female Cat last seen In the cndmniums across Stater Brothers on Harbor Blvd and Whittier, La Habra, CA 90631

Reported 2 months ago, updated 4 days ago

Amethyst Female Cat

LOST PawBoost ID: 73131587


La Habra, CA 90631

Grey Tabby

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Lost Male Cat last seen Victoria and Jane, Riverside, CA 92506

Reported 4 weeks ago, updated 4 days ago

Simba Male Cat

LOST PawBoost ID: 73308323


Riverside, CA 92506

He has balls not fixed

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Lost Female Cat last seen Cayon Rim and Comanche Circle, Pomona, CA 91766

Reported 1 week ago, updated 4 days ago

Queenie Female Cat

LOST PawBoost ID: 73396003


Pomona, CA 91766

Her name is Queenie. She is wearing an orange collar with our contact details. If you have seen her, please let us know.

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Lost Male Cat last seen Camarosa dr and fairmont, Yorba Linda, CA 92886

Reported 4 days ago, updated 4 days ago

Miroh Male Cat

LOST PawBoost ID: 73408252


Yorba Linda, CA 92886

Black short hair

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Lost Male Cat last seen limonite ave, Riverside, CA 92509

Reported 6 days ago, updated 4 days ago

Confetti Male Cat

LOST PawBoost ID: 73401366


Riverside, CA 92509

he’s a white cat with a black tail and little black spots around him (he’s majority white)

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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 – 2,315,233 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.