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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 Euclid and Oranagethorpe, Fullerton, CA 92832

Reported 1 month ago, updated 3 weeks ago

Binx Male Cat

LOST PawBoost ID: 73297062


Fullerton, CA 92832

Black Cat with Green Eyes. Approx 12lbs. Chipped but no collar. Mostly indoor cat that got out late 8/17.

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Lost Female Cat last seen Waters Ave, Pomona, CA 91766

Reported 3 months ago, updated 3 weeks ago

Ember Female Cat

LOST PawBoost ID: 73082842


Pomona, CA 91766

Tortoiseshell cat with fluffy fur and kind of small for a cat; weighs around 9 pounds and is almost 2 years old.

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Lost Male Cat last seen Dorothea Road and Cypress Street, La Habra Heights, CA 90631

Reported 4 months ago, updated 3 weeks ago

Tigger Male Cat

LOST PawBoost ID: 72953574


La Habra Heights, CA 90631

Orange/Rust colored shorthair with very long tail and cream stripes/swirls

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Lost Male Cat last seen South Kathleen Ln and Chapman, Orange, CA 92869

Reported 1 month ago, updated 3 weeks ago

Houdini Male Cat

LOST PawBoost ID: 73264677


Orange, CA 92869

Shiny Gray with mint green eyes. He has the smallest white tuff on his back spine. He can hide for HOURS and not come out. He is not aggressive just skittish and timid.

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Lost Male Cat last seen Bergamot Park, Wood Rd, Riverside, CA 92508

Reported 4 months ago, updated 3 weeks ago

Charles Male Cat

LOST PawBoost ID: 72911988


Riverside, CA 92508

Dark gray with white socks and green eyes

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Lost Male Cat last seen Avalon st, newton st, jurupa valley, Jurupa Valley, CA 92509

Reported 3 months ago, updated 3 weeks ago

Pumpkin Male Cat

LOST PawBoost ID: 73084245


Jurupa Valley, CA 92509

Orange shorthair tabby cat

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Lost Male Cat last seen Larrylyn and Russell, Whittier, CA 90603

Reported 4 weeks ago, updated 3 weeks ago

Jasper Male Cat

LOST PawBoost ID: 73322502


Whittier, CA 90603

Orange tabby with white belly and legs. Small black dots on his nose. Neutered but no chip

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Lost Female Cat last seen Donway and Lake Canyon, Rowland Heights, CA 91789

Reported 3 months ago, updated 3 weeks ago

Rowdy Female Cat

LOST PawBoost ID: 73092474


Rowland Heights, CA 91789

Black and white with black moustache

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Lost Female Cat last seen Lilac & 422 w cascade dr, Rialto, CA 92376

Reported 8 months ago, updated 3 weeks ago

Kalesits Female Cat

LOST PawBoost ID: 72552241


Rialto, CA 92376

Has a little moon on the left back leg

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Lost Female Cat last seen Taft and Wildwood, Villa Park, CA 92861

Reported 1 month ago, updated 3 weeks ago

Velvet Female Cat

LOST PawBoost ID: 73248634


Villa Park, CA 92861

Tuxedo cat

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Lost Male Cat last seen Corona, CA --> Cross Streets: Masters Drive and Camino De Salmon St., Corona, CA 92881

Reported 9 months ago, updated 3 weeks ago

Aku Male Cat

LOST PawBoost ID: 72387365


Corona, CA 92881

Neutered brown tabby with a white patch on the chin. Green eyes, black lips, and black toe beans.

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Lost Male Cat last seen Near Tindari pl, Rancho Cucamonga, CA 91701

Reported 4 weeks ago, updated 3 weeks ago

Ash Male Cat

LOST PawBoost ID: 73319507


Rancho Cucamonga, CA 91701

Mynx (no tail) black cat with green eyes

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Lost Male Cat last seen Monterey and Montana, Monrovia, CA 91016

Reported 1 month ago, updated 4 weeks ago

Fluffy Male Cat

LOST PawBoost ID: 73275135


Monrovia, CA 91016

Black and White Tuxedo, medium to long hair Age: 10 years

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Lost Male Cat last seen Westmont & Mission, Pomona, CA 91766

Reported 3 months ago, updated 4 weeks ago

King Louie Male Cat

LOST PawBoost ID: 73067797


Pomona, CA 91766

All White short hair

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Lost Female Cat last seen Holy Name of Mary Church, La Verne, CA 91750

Reported 2 months ago, updated 4 weeks ago

Phoebe Female Cat

LOST PawBoost ID: 73238677


La Verne, CA 91750

Tabby cat with white chin, yellow eyes,

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Lost Male Cat last seen W Mauno Loa ave, W Baseline Rd, Glendora, CA 91740

Reported 10 months ago, updated 4 weeks ago

Otherwise Male Cat

LOST PawBoost ID: 72309547


Glendora, CA 91740

Grey, long s, yellow eyes, white on his chin, back feet, and a little on his neck. He's got a meek, scratchy meow.

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Lost Male Cat last seen W Mauno Loa ave, W Baseline Rd, S Vecino dr, Glendora, CA 91740

Reported 10 months ago, updated 4 weeks ago

Shia Surprise Male Cat

LOST PawBoost ID: 72318571


Glendora, CA 91740

Black shorthair, looong black tail, sleek, shiny body, yellowish green eyes. He's about a year old,

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Lost Male Cat last seen Santiago blvd, Orange, CA 92867

Reported 4 weeks ago

Pepper Male Cat

LOST PawBoost ID: 73327166


Orange, CA 92867

Black and white tuxedo cat with white front toes, white socks on his back feet, also has white fur down along his belly. He’s had a slim body

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Lost Female Cat last seen Pine and Sagebrush, Chino Hills, CA 91709

Reported 1 month ago, updated 4 weeks ago

Sammy Female Cat

LOST PawBoost ID: 73263049


Chino Hills, CA 91709

Female Gray Medium Hair with AirTag

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Lost Male Cat last seen Madison Home Depot, Riverside, CA 92504

Reported 4 weeks ago

Dooder Male Cat

LOST PawBoost ID: 73326179


Riverside, CA 92504

Grey striped with snipped ear has a bad tooth on his right upper fang

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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 – 2,315,359 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.