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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.

977 lost cats in your search

Lost Male Cat last seen Autumn Hill and Sandridge Rd. Quail Summit Elementary, Diamond Bar, CA 91765

Reported 5 months ago, updated 1 month ago

Rainbow Male Cat

LOST PawBoost ID: 72878491


Diamond Bar, CA 91765

Black Tabby with dark blue collar and gold tag.

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Lost Female Cat last seen Cypress Ave and Vincent Ace, Covina, CA 91722

Reported 1 month ago

Boots Female Cat

LOST PawBoost ID: 73369698


Covina, CA 91722

Grey with black patterns, white chest and paws. Has two black countur stripes on each cheek. White and black nose with diagonal part.

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Lost Male Cat last seen Bryan and Jeffrey, Irvine, CA 92620

Reported 1 month ago

Salmon Male Cat

LOST PawBoost ID: 73369536


Irvine, CA 92620

Brown tabby

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Lost Male Cat last seen Bryan and Jeffrey, Irvine, CA 92620

Reported 1 month ago

Tuna Male Cat

LOST PawBoost ID: 73369516


Irvine, CA 92620

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Lost Male Cat last seen Amar la puente, La Puente, CA 91744

Reported 1 month ago, updated 1 month ago

Bear Male Cat

LOST PawBoost ID: 73360738


La Puente, CA 91744

Bear brownish color green eyes

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Lost Female Cat last seen Culver and Glassell, Orange, CA 92866

Reported 2 months ago, updated 1 month ago

Daisy Mertyl Female Cat

LOST PawBoost ID: 73233993


Orange, CA 92866

Dark striped, long fur, long bushy tail. Like a plume. Fat stomach

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Lost Male Cat last seen Near Roswell Ave Pomona California, Pomona, CA 91766

Reported 1 month ago

Milo Male Cat

LOST PawBoost ID: 73365883


Pomona, CA 91766

He’s orange and just recently got neutered.

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Lost Female Cat last seen Groveyoulane, Perris, CA 92570

Reported 1 month ago

Ivory Female Cat

LOST PawBoost ID: 73365684


Perris, CA 92570

All whit

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Lost Male Cat last seen Arrow Hwy and Indian Hill, Claremont, CA 91767

Reported 11 months ago, updated 1 month ago

Kitty Male Cat

LOST PawBoost ID: 72268989


Claremont, CA 91767

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Lost Male Cat last seen Via Lenardo, Yorba Linda, CA 92887

Reported 2 months ago, updated 1 month ago

Niko Male Cat

LOST PawBoost ID: 73327309


Yorba Linda, CA 92887

5-year-old male Ragamuffin. Long fluffy brown/black coat with dark face and ears, bright blue eyes, white chest and white paws. Very scared/shy but curious

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Lost Male Cat last seen Norco hills, Norco, CA 92860

Reported 1 month ago

Boost Male Cat

LOST PawBoost ID: 73363017


Norco, CA 92860

orange tabby, green eyes, teal checkered collar

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Lost Female Cat last seen Chase Bank, Anaheim, CA 92801

Reported 1 month ago

Terri Female Cat

LOST PawBoost ID: 73362228


Anaheim, CA 92801

Black 3 month old kitten

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Lost Male Cat last seen Meridian St. Hermosa Gardens Cemetery, Colton, CA 92324

Reported 2 months ago, updated 1 month ago

Milo Male Cat

LOST PawBoost ID: 73307001


Colton, CA 92324

White with black grey tail

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Lost Female Cat last seen South Eucla Ave, San Dimas, 91773, San Dimas, CA 91773

Reported 1 month ago, updated 1 month ago

Boots Female Cat

LOST PawBoost ID: 73353166


San Dimas, CA 91773

Black and white tuxedo cat with soft short hair and will come if you have food or sit down and call her

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Lost Female Cat last seen Temple & Avenida Rancheros, Pomona, CA 91768

Reported 3 months ago, updated 1 month ago

mimi Female Cat

LOST PawBoost ID: 73221199


Pomona, CA 91768

Siamese

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Lost Male Cat last seen Arrow Sunflower, Glendora, CA 91740

Reported 1 month ago

Muncy Male Cat

LOST PawBoost ID: 73356180


Glendora, CA 91740

Young Male orange with no white

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Lost Male Cat last seen Near Bogardus Ave, Whittier, CA 90603

Reported 1 month ago

Dobbs Male Cat

LOST PawBoost ID: 73356126


Whittier, CA 90603

Intact kitten

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Lost Male Cat last seen State st. And other crossing roads, Corona, CA 92881

Reported 2 months ago, updated 1 month ago

Bullet Male Cat

LOST PawBoost ID: 73300292


Corona, CA 92881

He is a black and white tuxedo cat

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Lost Male Cat last seen Pauline Street and Adele. Lincoln and Cypress at Olive., Anaheim, CA 92805

Reported 2 months ago, updated 1 month ago

Tuxedo Male Cat

LOST PawBoost ID: 73270533


Anaheim, CA 92805

Black and white Tuxedo cat. Area from Sycamore to Adele to Cypress on Pauline and in rear in private community with cider block fences at our back fence. Runs and hangs out in shade on top and on picnic table under umbrella and or under patio furniture. He is semi feral from Mama cat. He keeps his distance but my Chihuahua misses him as I do.

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Lost Female Cat last seen Rialto, Rialto, CA 92376

Reported 4 months ago, updated 1 month ago

Emma Female Cat

LOST PawBoost ID: 73058123


Rialto, CA 92376

Grey with white and orange patches, green eyes

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Lost Cat Data for Ontario, CA

There are 977 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 – 2,334,394 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.