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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.

1005 lost cats in your search

Lost Female Cat last seen Ladera Vista Junior High and Commonwelath Elementary, Fullerton, CA 92831

Reported 3 months ago, updated 1 month ago

Fiona Female Cat

LOST PawBoost ID: 72668380


Fullerton, CA 92831

mostly gray with some stripes, white belly/feet, and olive-colored eyes

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Lost Male Cat last seen Dg market, Colton, CA 92324

Reported 2 months ago, updated 1 month ago

Hir Male Cat

LOST PawBoost ID: 72763207


Colton, CA 92324

Please help me find him reward available

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Lost Female Cat last seen E Olive Street and Shamrock, Monrovia, CA 91016

Reported 1 month ago

Debra Female Cat

LOST PawBoost ID: 72840748


Monrovia, CA 91016

White mark that goes above her eyes

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Lost Female Cat last seen Campus/Sultana , Ontario, CA 91764

Reported 4 months ago, updated 1 month ago

Go jo Female Cat

LOST PawBoost ID: 72523316


Ontario, CA 91764

Tabby with right ear tip and orange spot on head. No white on body

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Lost Male Cat last seen 5th street and Pedley, San Bernardino, CA 92403

Reported 1 month ago

Nocturno Male Cat

LOST PawBoost ID: 72838760


San Bernardino, CA 92403

Black fur with some white, not enough white to tell from a far. Last seen with a black leather collar with multiple crosses and skulls around. He’s very shy but really playful.

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Lost Male Cat last seen Haddington and Lochmoor, Riverside, CA 92507

Reported 1 month ago

Jo Jo Or Joseph Male Cat

LOST PawBoost ID: 72838548


Riverside, CA 92507

Striped orange tabby

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Lost Female Cat last seen Wabash St and Oliver Ave, Rialto, CA 92376

Reported 4 months ago, updated 1 month ago

Kiki Female Cat

LOST PawBoost ID: 72531323


Rialto, CA 92376

Gray with light gray stripes and has a pink collar

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Lost Male Cat last seen One Way Auto and Repair Shop in Anaheim, Anaheim, CA 92802

Reported 2 months ago, updated 1 month ago

Brownie Male Cat

LOST PawBoost ID: 72726963


Anaheim, CA 92802

Long haired black and brown angel

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Lost Female Cat last seen Beach blvd, Buena Park, CA 90620

Reported 1 month ago

Marshall Female Cat

LOST PawBoost ID: 72838015


Buena Park, CA 90620

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Lost Male Cat last seen Katella and Brookhurst, Garden Grove, CA 92840

Reported 2 months ago, updated 1 month ago

Ramen Huevo Le Male Cat

LOST PawBoost ID: 72693774


Garden Grove, CA 92840

He’s a striped tiger looking Tabby cat. He has a green bow collar, Christmas theme. One year old, long body and legs. Has a super long tail.

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Lost Female Cat last seen Foothill and Orange Knoll Dr, North Tustin, CA 92705

Reported 1 month ago, updated 1 month ago

Snow Female Cat

LOST PawBoost ID: 72795566


North Tustin, CA 92705

Female calico mostly white

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Lost Female Cat last seen Arroyo Ave & Arroyo park drive, Pomona, CA 91768

Reported 1 month ago

Guera Female Cat

LOST PawBoost ID: 72837160


Pomona, CA 91768

She’s a Cream Cat

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Lost Female Cat last seen Vinton and via lido , Pomona, CA 91767

Reported 1 month ago, updated 1 month ago

Bella Female Cat

LOST PawBoost ID: 72822022


Pomona, CA 91767

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Lost Male Cat last seen King Street & California Santa Ana , Santa Ana, CA 92701

Reported 1 month ago

Cheeto Male Cat

LOST PawBoost ID: 72836426


Santa Ana, CA 92701

Male Neutered , Super friendly well fed

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Lost Male Cat last seen Highland ave, San Bernardino, CA 92411

Reported 1 month ago

Lucky Male Cat

LOST PawBoost ID: 72835849


San Bernardino, CA 92411

Grey cat with white at the tip Of tail

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Lost Male Cat last seen Juli we, California, near muscoy, San Bernardino, CA 92411

Reported 3 months ago, updated 1 month ago

Bandit Male Cat

LOST PawBoost ID: 72629614


San Bernardino, CA 92411

he is a long haired grey and white cat and has a black collar on!. He is fixed and microchipped!

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Lost Female Cat last seen Dixie ln , Riverside, CA 92503

Reported 1 month ago

Chiquita Female Cat

LOST PawBoost ID: 72835355


Riverside, CA 92503

White grey with green eyes cat

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Lost Female Cat last seen Near s Yorkshire Cir, Anaheim hills, Anaheim, CA 92808

Reported 1 month ago, updated 1 month ago

Bassboussy Female Cat

LOST PawBoost ID: 72827053


Anaheim, CA 92808

White Persian cat

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Lost Female Cat last seen Near W monterey ave, Pomona, CA 91768

Reported 1 month ago, updated 1 month ago

Sunny Female Cat

LOST PawBoost ID: 72826956


Pomona, CA 91768

Orange cat

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Lost Female Cat last seen Foothills and Oaklawn Rd, Arcadia, CA 91006

Reported 1 month ago

Heizi Female Cat

LOST PawBoost ID: 72832494


Arcadia, CA 91006

Small spayed female black domestic medium hair; green eyes

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Lost Cat Data for Ontario, CA

There are 1005 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 – 2,229,779 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.