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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.

839 lost cats in your search

Lost Male Cat last seen Woodcrest Ave, La Habra, CA 90631

Reported 4 days ago

Baby Male Cat

LOST PawBoost ID: 73603448


La Habra, CA 90631

Grey with green eyes

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Lost Male Cat last seen Cienaga Ave, Covina, CA 91773

Reported 7 months ago, updated 4 days ago

Chwecks Male Cat

LOST PawBoost ID: 72804281


Covina, CA 91773

Fluffy Mane and Tail Black Male Cat. He is 1 years old. Missing since April 21 in the Glen Arden Ave and Cienaga Ave neighborhood in Charter Oak. He is neutered but not micochiped.

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Lost Female Cat last seen Batavia and Cully, Orange, CA 92865

Reported 5 months ago, updated 4 days ago

Cleo Female Cat

LOST PawBoost ID: 73000107


Orange, CA 92865

$100 REWARD

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Lost Male Cat last seen East Hawthorne St near Vineyard Park, Ontario, CA 91764

Reported 2 weeks ago, updated 4 days ago

Mateo Male Cat

LOST PawBoost ID: 73573716


Ontario, CA 91764

Specific balding on left side of head, white bridge on nose

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Lost Male Cat last seen Ridgeline Dr and Wilson, Rancho Cucamonga, CA 91739

Reported 2 months ago, updated 4 days ago

Loki Male Cat

LOST PawBoost ID: 73325781


Rancho Cucamonga, CA 91739

Bengal male cat, 1 1/2 year old .

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Lost Female Cat last seen Center st & Iowa, Riverside, CA 92507

Reported 1 year ago, updated 4 days ago

Bella Female Cat

LOST PawBoost ID: 71700705


Riverside, CA 92507

All black with a 2inch tail. Her tag was pink, Heart shaped

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Lost Female Cat last seen E Gladstone St & Ramona, La Verne, CA 91750

Reported 2 months ago, updated 4 days ago

Daisybell Female Cat

LOST PawBoost ID: 73413416


La Verne, CA 91750

Mostly grey with darker colored stripes. Her head is a little small. She is also incredibly skittish.

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Lost Male Cat last seen Fiesta Hills Mobile Park, Highland, CA 92346

Reported 6 months ago, updated 4 days ago

Bigboy Male Cat

LOST PawBoost ID: 72831093


Highland, CA 92346

Short hair Tabby, grey-brown stripe pattern, white chest n paws,white smudge on back

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Lost Male Cat last seen Sierra Madre and Lorraine, Glendora, CA 91741

Reported 2 weeks ago, updated 4 days ago

Leo Male Cat

LOST PawBoost ID: 73562835


Glendora, CA 91741

Blonde orange tabby

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Lost Male Cat last seen Aero vista Park, Brea, CA 92821

Reported 4 days ago

Momo Male Cat

LOST PawBoost ID: 73602162


Brea, CA 92821

Dark grey with white paws

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Lost Male Cat last seen Pienza Ct, Riverside, CA 92503

Reported 3 weeks ago, updated 4 days ago

Sebastian Male Cat

LOST PawBoost ID: 73540985


Riverside, CA 92503

White long hair

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Lost Male Cat last seen in the neighborhood, Walnut, CA 91789

Reported 2 months ago, updated 4 days ago

Tiger Male Cat

LOST PawBoost ID: 73356672


Walnut, CA 91789

beige/white cat, missing back paw, neutered

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Lost Male Cat last seen Larkvane/ Camino bello Rowland heights, Rowland Heights, CA 91748

Reported 2 weeks ago, updated 4 days ago

Mr O (Peach) Male Cat

LOST PawBoost ID: 73572232


Rowland Heights, CA 91748

Orange cat, he has microchip

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Lost Male Cat last seen Reed street, palmetto avenue, Fontana, CA 92336

Reported 4 days ago

Xander Male Cat

LOST PawBoost ID: 73601858


Fontana, CA 92336

Blue eyes white brown coat short hair, pink and black toes

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Lost Male Cat last seen Carlos Ct., Chino, CA 91710

Reported 1 month ago, updated 4 days ago

Samba Male Cat

LOST PawBoost ID: 73473510


Chino, CA 91710

black/grey mackerel tabby cat

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Lost Male Cat last seen Gramercy St, Pomona, CA 91767

Reported 5 months ago, updated 4 days ago

Yuan Yuan Male Cat

LOST PawBoost ID: 73038195


Pomona, CA 91767

Yuan Yuan is male tuxedo, about 5 years old. Friendly and comfortable with people.

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Lost Female Cat last seen Wisconsin St., Pomona, CA 91768

Reported 2 weeks ago, updated 5 days ago

Puma Female Cat

LOST PawBoost ID: 73562495


Pomona, CA 91768

Solid gray with green eyes.

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Lost Male Cat last seen E Virginia and crestview Glendora, Glendora, CA 91741

Reported 10 months ago, updated 5 days ago

Milo Male Cat

LOST PawBoost ID: 72442347


Glendora, CA 91741

Black and white male cat short haired

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Lost Male Cat last seen Windstone Way, Clark St, Cajalco Rd, Perris, CA 92570

Reported 2 years ago, updated 5 days ago

Bon Bon Male Cat

LOST PawBoost ID: 71374939


Perris, CA 92570

Skittish, green eyes, neutered male, has a microchip, weighs 13 pounds, tip of his tail is black.

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Lost Male Cat last seen Crestlane ave, Anaheim, CA 92806

Reported 3 weeks ago, updated 5 days ago

Kino Male Cat

LOST PawBoost ID: 73522798


Anaheim, CA 92806

Black cat, neutered, he had a purple collar, he has no teeth, he has one cloudy eye , he has green eyes he’s 10 years old.

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Lost Cat Data for Ontario, CA

There are 839 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 – 2,350,963 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.