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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 Female Cat last seen Near Woodville Dr. El Monte, El Monte, CA 91732

Reported 2 months ago, updated 2 weeks ago

Paloma (Mamash) Female Cat

LOST PawBoost ID: 73181285


El Monte, CA 91732

Different colors

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Lost Unknown Cat last seen Arrow and grove, Rancho Cucamonga, CA 91730

Reported 3 months ago, updated 2 weeks ago

Mama Kitty Unknown Cat

LOST PawBoost ID: 73029033


Rancho Cucamonga, CA 91730

Small gray cat. Is older and not welcoming. Will be scared of people

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Lost Female Cat last seen Lizbeth st, Anaheim, CA 92806

Reported 2 weeks ago

Jewlz Female Cat

LOST PawBoost ID: 73357542


Anaheim, CA 92806

Small light cream grey short hair

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Lost Male Cat last seen El Modena Open Space, Orange, CA 92869

Reported 2 months ago, updated 2 weeks ago

Echo Male Cat

LOST PawBoost ID: 73193670


Orange, CA 92869

Has a light brown/grey spot under his chin

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Lost Female Cat last seen Fullerton Rd, La Habra Heights, CA 90631

Reported 2 months ago, updated 2 weeks ago

Lucy Female Cat

LOST PawBoost ID: 73170732


La Habra Heights, CA 90631

White calico

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

Reported 2 months ago, updated 2 weeks ago

mimi Female Cat

LOST PawBoost ID: 73221199


Pomona, CA 91768

Siamese

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Lost Male Cat last seen Gun Tree Drive and Cold Plains Drive, Hacienda Heights, CA, Hacienda Heights, CA 91745

Reported 1 year ago, updated 2 weeks ago

Buckley Male Cat

LOST PawBoost ID: 71658516


Hacienda Heights, CA 91745

Black and white short haired cat, with swirly pattern on back and sides. Around 9-10 pounds.

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

Reported 3 weeks 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 3 weeks ago

Dobbs Male Cat

LOST PawBoost ID: 73356126


Whittier, CA 90603

Intact kitten

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Lost Male Cat last seen Sterling and Arden San Bernardino, San Bernardino, CA 92404

Reported 3 weeks ago, updated 3 weeks ago

Mickey Male Cat

LOST PawBoost ID: 73349051


San Bernardino, CA 92404

grey with white on belly, green eyes

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Lost Female Cat last seen Peralta, Mountain Shadow, Riverside, CA 92509

Reported 1 month ago, updated 3 weeks ago

Bilbo Female Cat

LOST PawBoost ID: 73294529


Riverside, CA 92509

Long hair multi-color on her face like phantom of the opera

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Lost Female Cat last seen Brea blvd/ Bastanchury, Fullerton, CA 92831

Reported 3 weeks ago

Senna Female Cat

LOST PawBoost ID: 73355327


Fullerton, CA 92831

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

Reported 1 month ago, updated 3 weeks 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 Near E Shady Grove Dr, Riverside, CA 92507, Riverside, CA 92507

Reported 3 months ago, updated 3 weeks ago

Peeta Male Cat

LOST PawBoost ID: 73063646


Riverside, CA 92507

He his a tabby with a white undercoat and has a red collar

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

Reported 1 month ago, updated 3 weeks 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 3 months ago, updated 3 weeks ago

Emma Female Cat

LOST PawBoost ID: 73058123


Rialto, CA 92376

Grey with white and orange patches, green eyes

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Lost Male Cat last seen Azusa & Temple, La Puente, CA 91744

Reported 3 weeks ago, updated 3 weeks ago

Tinker Male Cat

LOST PawBoost ID: 73345726


La Puente, CA 91744

15 year old long hair American domestic green eyes 8 pounds

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Lost Female Cat last seen Neighborhood, Riverside, CA 92508

Reported 1 month ago, updated 3 weeks ago

Todey Female Cat

LOST PawBoost ID: 73291339


Riverside, CA 92508

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Lost Male Cat last seen Third/Esther, La Verne, CA 91750

Reported 3 months ago, updated 3 weeks ago

Gordo/horchato Male Cat

LOST PawBoost ID: 73055299


La Verne, CA 91750

White with black and brown spots/Blue eyes. He has a black spot on the bottom of his nose

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Lost Female Cat last seen Near w Caroline ct Ontario ca, Ontario, CA 91762

Reported 3 weeks ago

Nala Female Cat

LOST PawBoost ID: 73352738


Ontario, CA 91762

Gris con collar amarillo

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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 – 2,315,330 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.