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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 Handy and Locust Ave, Orange, CA 92867

Reported 1 year ago, updated 2 weeks ago

Ziggy Male Cat

LOST PawBoost ID: 71894939


Orange, CA 92867

Grey with white paws and white on his chin and belly. He has bald spots near his tail. Has an infection in one eye and has goo build up.

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Lost Male Cat last seen Near E. Foothill blvd Pomona CA 91767, Pomona, CA 91767

Reported 1 month ago, updated 2 weeks ago

Niko Male Cat

LOST PawBoost ID: 73272146


Pomona, CA 91767

Black spot on the nose

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Lost Female Cat last seen Magnolia Villa Apts Magnolia/Myers st, Riverside, CA 92503

Reported 4 weeks ago, updated 2 weeks ago

Rose Female Cat

LOST PawBoost ID: 73324880


Riverside, CA 92503

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Lost Male Cat last seen Gladstone St, San Dimas, CA 91773

Reported 2 weeks ago

Cosmo Male Cat

LOST PawBoost ID: 73377734


San Dimas, CA 91773

Orange, with yellowish eyes

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Lost Male Cat last seen Moor ct and Kendrick, Riverside, CA 92507

Reported 1 month ago, updated 2 weeks ago

Toothless(kitty Male Cat

LOST PawBoost ID: 73248075


Riverside, CA 92507

All black male cat with red tinted fur. Very friendly but could be scared.

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Lost Male Cat last seen La Sierra & Indiana Ave, Riverside, CA 92503

Reported 3 weeks ago, updated 2 weeks ago

Cosmo Male Cat

LOST PawBoost ID: 73338128


Riverside, CA 92503

Black with grayish stripes and bottom of the belly is white

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Lost Male Cat last seen Elm ave and Richmond Ave, Fullerton, CA 92832

Reported 1 month ago, updated 2 weeks ago

Sylvester Male Cat

LOST PawBoost ID: 73302971


Fullerton, CA 92832

Gray tabby with white paws

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Lost Female Cat last seen W. shamrock st, Rialto, CA 92376

Reported 3 weeks ago, updated 2 weeks ago

Luna Female Cat

LOST PawBoost ID: 73346798


Rialto, CA 92376

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Lost Female Cat last seen Wasatch Dr, Anaheim, CA 92807

Reported 1 month ago, updated 2 weeks ago

Mooni Female Cat

LOST PawBoost ID: 73275920


Anaheim, CA 92807

Black/ No Tail/ Chunky

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Lost Female Cat last seen Howellhurst, West Covina, CA 91790

Reported 8 months ago, updated 2 weeks ago

Winona Female Cat

LOST PawBoost ID: 72549734


West Covina, CA 91790

Tuxedo cat white paws

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Lost Female Cat last seen Loukleton street near hacienda, La Puente, CA 91744

Reported 3 weeks ago, updated 2 weeks ago

Princess Female Cat

LOST PawBoost ID: 73348172


La Puente, CA 91744

Shorthair brown tabby cat. A little of the fluffy side

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Lost Male Cat last seen Cherry Ave and Bridlepath, Fontana, CA 92336

Reported 3 weeks ago, updated 2 weeks ago

Tipsie Male Cat

LOST PawBoost ID: 73347142


Fontana, CA 92336

White body with gray stripes. Black and withe stripes on the tail, black freckle on his nose. Beautiful blue eyes

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Lost Female Cat last seen Mountain View Ave/ Ohio street, Yorba Linda, CA 92886

Reported 2 months ago, updated 2 weeks ago

Lady Female Cat

LOST PawBoost ID: 73244254


Yorba Linda, CA 92886

All black, one year old, no defining features. Wearing a black and gray flea color.

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Lost Male Cat last seen Evergreen Springs & Pathfinder. Near Diamond Bar High School., Diamond Bar, CA 91765

Reported 2 weeks ago

Loki Male Cat

LOST PawBoost ID: 73374156


Diamond Bar, CA 91765

14lbs black fluffy cat with one crooked ear.

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Lost Female Cat last seen 5th and Newman Ave. In Arcadia, Right above 210 fw, Arcadia, CA 91006

Reported 1 month ago, updated 2 weeks ago

Mika Female Cat

LOST PawBoost ID: 73276456


Arcadia, CA 91006

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Lost Male Cat last seen Miller Ave and Almeria ave, Fontana, CA 92336

Reported 3 months ago, updated 2 weeks ago

Herkules Male Cat

LOST PawBoost ID: 73053097


Fontana, CA 92336

Orange and white striped Tabby

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Lost Male Cat last seen 21st & Euclid Ave, Upland, CA 91784

Reported 3 weeks ago, updated 2 weeks ago

Chester Male Cat

LOST PawBoost ID: 73338378


Upland, CA 91784

Shorthair cat with a distinctive diamond like shape on his back

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Lost Female Cat last seen Azusa and Cameron, West Covina, CA 91791

Reported 2 months ago, updated 2 weeks ago

Moochie Female Cat

LOST PawBoost ID: 73130536


West Covina, CA 91791

Indoor but a little caughtios

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Lost Female Cat last seen Lydia Ct, Fontana, CA 92335

Reported 2 weeks ago

Unknown Female Cat

LOST PawBoost ID: 73372914


Fontana, CA 92335

1 month old Tabby

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Lost Male Cat last seen Sparks elementary, La Puente, CA 91744

Reported 2 weeks ago, updated 2 weeks ago

Buckeroo Male Cat

LOST PawBoost ID: 73364298


La Puente, CA 91744

Small orange tabby striped, small for his age

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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 – 2,315,269 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.