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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 6th ave Arcadia, Arcadia, CA 91006

Reported 2 months ago, updated 10 hours ago

Siul Male Cat

LOST PawBoost ID: 73206216


Arcadia, CA 91006

Has strong markings and patterns

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Lost Male Cat last seen Grand and Old Mill Rd., Riverside, CA 92504

Reported 7 days ago, updated 12 hours ago

Sammy Male Cat

LOST PawBoost ID: 73399567


Riverside, CA 92504

Black and white tuxedo kitty, black nose

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Lost Male Cat last seen Near Crockett Ct. Fontana, Fontana, CA 92336

Reported 1 month ago, updated 13 hours ago

Shady Male Cat

LOST PawBoost ID: 73265720


Fontana, CA 92336

Shady is a super friendly, very large black cat with white paws and distinct facial markings. He is neutered and unfortunately recently lost his collar.

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Lost Female Cat last seen Genoa, Monrovia, CA 91016

Reported 10 months ago, updated 13 hours ago

Betty Rose Female Cat

LOST PawBoost ID: 72346276


Monrovia, CA 91016

Tabby with white legs / ear tipped.

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Lost Male Cat last seen Long view dr, mountain high dr, Fontana, CA 92337

Reported 1 year ago, updated 13 hours ago

Keanu Male Cat

LOST PawBoost ID: 71785220


Fontana, CA 92337

Small black cat. Collar with bell on it. Has one good eye.

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Lost Female Cat last seen Washington St & Mohave Dr., Colton, CA 92324

Reported 15 hours ago

Snow Female Cat

LOST PawBoost ID: 73424000


Colton, CA 92324

She is a fluffy cream colored cat with a small white mark on her forehead and white on her chest and to her stomach. She has a black and white blackcraft collar that has a bow and a pink heart name tag.

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Lost Male Cat last seen Glendora Ave and Foothill, Glendora, CA 91741

Reported 6 months ago, updated 16 hours ago

Snoockims Male Cat

LOST PawBoost ID: 72669665


Glendora, CA 91741

Brown tabby Maine coon

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

Reported 17 hours ago

Zorrobandit Male Cat

LOST PawBoost ID: 73423380


Moreno Valley, CA 92555

Snowshoe Siamese

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Lost Female Cat last seen Racquet club, Diamond Bar, CA 91765

Reported 1 week ago, updated 17 hours ago

Kitty Female Cat

LOST PawBoost ID: 73385068


Diamond Bar, CA 91765

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

Reported 8 months ago, updated 18 hours 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 Encanto Pkwy and Hacienda, Duarte, CA 91010

Reported 6 months ago, updated 20 hours ago

Ripley Female Cat

LOST PawBoost ID: 72757466


Duarte, CA 91010

Gray and white with collar. Young, about 8lbs.

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Lost Unknown Cat last seen W 6th Street, San Bernardino, CA 92410

Reported 2 years ago, updated 21 hours ago

Snowflake Unknown Cat

LOST PawBoost ID: 71205078


San Bernardino, CA 92410

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Lost Male Cat last seen Del Mar Ave and N Highland, Orange, CA 92865

Reported 5 days ago, updated 1 day ago

Lupin Male Cat

LOST PawBoost ID: 73404382


Orange, CA 92865

Black and white, tuxedo. Face of a mouse like tom and Jerry. With a black spot under chin. y Blanco, tuxedo. Tiene Cara de raton con naris negra, y una marca negra abajo de su barbilla.

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Lost Female Cat last seen Louie Pompeii park, Glendora, CA 91740

Reported 1 day ago

Dulce Female Cat

LOST PawBoost ID: 73422205


Glendora, CA 91740

Tabby with a half an ear

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Lost Male Cat last seen Kaiser Avenue, Fontana, Fontana, CA 92336

Reported 1 day ago

Funny Face Male Cat

LOST PawBoost ID: 73422199


Fontana, CA 92336

Gray and white, short hair, male cat

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Lost Male Cat last seen Central ave and notthingham, alcott elementary school, Riverside, CA 92506

Reported 1 day ago

Binx Male Cat

LOST PawBoost ID: 73422146


Riverside, CA 92506

He is a Manx (tail-less) tuxedo

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Lost Male Cat last seen Bennett Ave, Masters Drive, Corona, CA 92883

Reported 1 month ago, updated 1 day ago

Miso Male Cat

LOST PawBoost ID: 73285826


Corona, CA 92883

Mostly Black on his back and mostly white on his chest

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Lost Female Cat last seen E Gladstone St & Ramona, La Verne, CA 91750

Reported 3 days ago, updated 1 day ago

Daisybell Female Cat

LOST PawBoost ID: 73413416


La Verne, CA 91750

Mostly grey with darker colored stripes. Her head is a little small. She is also incredibly skittish.

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Lost Female Cat last seen Glendora Ave and E Mice St, West Covina, CA 91790

Reported 6 months ago, updated 1 day ago

Amy Female Cat

LOST PawBoost ID: 72724901


West Covina, CA 91790

White, short-haired

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Lost Male Cat last seen Esteli park, Brea, CA 90631

Reported 1 month ago, updated 1 day ago

Sebastian Male Cat

LOST PawBoost ID: 73279652


Brea, CA 90631

Ragdoll Blue eyes, Seal point, heavy cat.

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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.