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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 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 Male Cat last seen Near green vista drive fontana ca, Fontana, CA 92337

Reported 4 weeks ago, updated 2 weeks ago

Max Male Cat

LOST PawBoost ID: 73317739


Fontana, CA 92337

Grey male 14lbs yellow eye medium hair

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Lost Male Cat last seen Longhill Street, Riverside, CA 92504

Reported 4 months ago, updated 2 weeks ago

Dusty Male Cat

LOST PawBoost ID: 72878683


Riverside, CA 92504

Medium hair, light orange tabby, possibly a tint of blue/green in his tail, red collar, microchipped, not fixed, a little over a year now

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Lost Male Cat last seen S Orange Ave W Baker Ave, 7-11, Fullerton, CA 92833

Reported 7 months ago, updated 2 weeks ago

Snoopy Male Cat

LOST PawBoost ID: 72589668


Fullerton, CA 92833

White and black with green eyes, black flower like pattern on his back(he's mostly white) black tail and black curtain bangs

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Lost Female Cat last seen Near E Mice St, West Covina, CA 91790

Reported 6 months ago, updated 2 weeks ago

Amy Female Cat

LOST PawBoost ID: 72681587


West Covina, CA 91790

White short-haired, orange ears and tail, and blue eyes.

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Lost Male Cat last seen Norwood ave la sierra, Riverside, CA 92505

Reported 2 weeks ago, updated 2 weeks ago

Lik Man Male Cat

LOST PawBoost ID: 73362842


Riverside, CA 92505

Grey with black patterns on the smaller side

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Lost Male Cat last seen Los Ángeles and Walnut ave, Baldwin Park, CA 91706

Reported 1 month ago, updated 2 weeks ago

Kiro Male Cat

LOST PawBoost ID: 73279523


Baldwin Park, CA 91706

1year old. He’s gray with white on the side of his stomach he has white circles. He’s microchipped

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Lost Male Cat last seen Lark Ellen and Cameron Next to the park, West Covina, CA 91791

Reported 2 months ago, updated 2 weeks ago

Hunter Male Cat

LOST PawBoost ID: 73133683


West Covina, CA 91791

white paws, with a black spot on the back

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Lost Female Cat last seen Valley & Orchard, Bloomington, CA 92316

Reported 2 weeks ago

Luna Female Cat

LOST PawBoost ID: 73370535


Bloomington, CA 92316

Orange blind in right eye

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Lost Male Cat last seen Valley & Orchard, Bloomington, CA 92316

Reported 2 weeks ago

Lucky Male Cat

LOST PawBoost ID: 73370530


Bloomington, CA 92316

All black

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Lost Male Cat last seen Goldenrod Park, Placentia, CA 92870

Reported 3 weeks ago, updated 2 weeks ago

Sylvester Male Cat

LOST PawBoost ID: 73333368


Placentia, CA 92870

Black and white long hair with one discolored eye

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

Reported 4 months ago, updated 2 weeks 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 Via Apolina, Moreno Valley, CA 92553

Reported 3 weeks ago, updated 2 weeks ago

Kiki Female Cat

LOST PawBoost ID: 73342392


Moreno Valley, CA 92553

Orange and black cat. Black spot on nose. Answers by Kiki.

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Lost Male Cat last seen Tyler peck, El Monte, CA 91731

Reported 4 months ago, updated 2 weeks ago

Prince Albert Male Cat

LOST PawBoost ID: 72925907


El Monte, CA 91731

Black and white with distinguished black spot on his nose

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

Reported 2 weeks 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 Female Cat last seen Whittier, Whittier, CA 90603

Reported 4 weeks ago, updated 2 weeks ago

Jiji Female Cat

LOST PawBoost ID: 73306738


Whittier, CA 90603

Black with white ear hairs

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

Reported 2 weeks ago, updated 2 weeks 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 2 weeks 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 Female Cat last seen Archibald and arrow, Rancho Cucamonga, CA 91730

Reported 3 weeks ago, updated 2 weeks ago

Horchata Female Cat

LOST PawBoost ID: 73342039


Rancho Cucamonga, CA 91730

Orange and white

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Lost Male Cat last seen E 8th and S Palomares St, Pomona, CA 91766

Reported 5 months ago, updated 2 weeks ago

Bobby Male Cat

LOST PawBoost ID: 72773930


Pomona, CA 91766

Gray and white Tabby. Black smudge on his nose. Neutered and responds to his name

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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 – 2,315,295 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.