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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 Fairgrove and Bannon, La Puente, CA 91749

Reported 2 weeks ago, updated 1 week ago

Lion Female Cat

LOST PawBoost ID: 73359369


La Puente, CA 91749

Grey Tabby with white around mouth and was wearing a red collar

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Lost Male Cat last seen Monrovia High School, Monrovia, CA 91016

Reported 1 month ago, updated 1 week ago

Brick Male Cat

LOST PawBoost ID: 73253916


Monrovia, CA 91016

White and Gray

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Lost Male Cat last seen Fern and Sonora, Redlands, CA 92373

Reported 1 month ago, updated 1 week ago

Tiger Male Cat

LOST PawBoost ID: 73301090


Redlands, CA 92373

Light tan friendly old cat with green/blue eyes

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Lost Male Cat last seen fenimore and viceroy, Azusa, CA 91702

Reported 4 weeks ago, updated 1 week ago

Rio Male Cat

LOST PawBoost ID: 73321983


Azusa, CA 91702

white/grey longhair

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Lost Female Cat last seen 4th and Harvard, Claremont, CA 91711

Reported 8 months ago, updated 1 week ago

Tulip Female Cat

LOST PawBoost ID: 72497859


Claremont, CA 91711

Longhair black/brown tabby

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Lost Female Cat last seen El Paseo Rd 92508, Riverside, CA 92508

Reported 2 years ago, updated 1 week ago

Sugar Female Cat

LOST PawBoost ID: 70230590


Riverside, CA 92508

Black and white calico. Sweet girl but skittish.

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Lost Female Cat last seen Caroline ct, Ontario, CA 91762

Reported 3 weeks ago, updated 1 week ago

Nhala Female Cat

LOST PawBoost ID: 73352784


Ontario, CA 91762

He's wearing a yellow necklace

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Lost Female Cat last seen Mabury Ranch, Bryce Ave and Zion, Orange, CA 92867

Reported 1 month ago, updated 1 week ago

Daisy Female Cat

LOST PawBoost ID: 73271441


Orange, CA 92867

Black cat

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Lost Male Cat last seen Between Fifth & Mayflower, Monrovia, CA 91016

Reported 4 months ago, updated 1 week ago

Scar Male Cat

LOST PawBoost ID: 72971851


Monrovia, CA 91016

DSH Brown Tabby,

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Lost Female Cat last seen Mayflower Village, Arcadia, CA 91006

Reported 2 months ago, updated 1 week ago

Bubbles Female Cat

LOST PawBoost ID: 73153672


Arcadia, CA 91006

Bubbles (name), 2 y.o, Light greenish yellow eyes with green breakaway collar and a green bell. Grey tabby Medium Fur with white socks and white coat from chest to belly. White marking on half of nose

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Lost Male Cat last seen Tolouse, Riverside, CA 92501

Reported 3 weeks ago, updated 1 week ago

Bolton Male Cat

LOST PawBoost ID: 73352859


Riverside, CA 92501

Orange Large male cat

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Lost Female Cat last seen SAN BERNARDINO CA, San Bernardino, CA 92408

Reported 1 week ago

Juno Female Cat

LOST PawBoost ID: 73388863


San Bernardino, CA 92408

TORTOISESHELL CAT

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Lost Male Cat last seen Larkwood and Gretta, West Covina, CA 91790

Reported 3 weeks ago, updated 1 week ago

Scully Male Cat

LOST PawBoost ID: 73354621


West Covina, CA 91790

Black and White Tuxedo, male, neutered and chipped

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Lost Male Cat last seen Autumn path st and huckleberry Ave, chino, Chino, CA 91708

Reported 1 week ago

Dodo Male Cat

LOST PawBoost ID: 73388319


Chino, CA 91708

Blue eyes, short hair

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Lost Male Cat last seen Grand Ave and Grandview Ave, Covina, CA 91723, Covina, CA 91723

Reported 1 month ago, updated 1 week ago

Howard Male Cat

LOST PawBoost ID: 73300490


Covina, CA 91723

Black and white

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Lost Female Cat last seen Loveland Dr and Kerry Ln, Jurupa Valley, CA 92509

Reported 1 month ago, updated 1 week ago

Oliver Female Cat

LOST PawBoost ID: 73294254


Jurupa Valley, CA 92509

Short hair all white color eyes

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Lost Male Cat last seen Mescal and Cantaria, Rowland Heights, CA 91748

Reported 3 years ago, updated 1 week ago

Stretchy Male Cat

LOST PawBoost ID: 70074511


Rowland Heights, CA 91748

Solid black. Had a couple of white whiskers last time I saw him. Medium sized adult. Eight years old.

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Lost Male Cat last seen Iolite loop st, San Bernardino, CA 92407

Reported 2 months ago, updated 1 week ago

Spooky Male Cat

LOST PawBoost ID: 73187142


San Bernardino, CA 92407

2-year-old neutered male gray tabby with short gray fur and darker tabby stripes. Microchipped. Slender build with long legs, large yellow-green eyes, and a pinkish-brown nose. Indoor-only cat who is very shy, cautious, and easily frightened. He is likely hiding and may not come when called or approach strangers. Please do not chase him. If you see him, please take a photo if possible and contact us immediately with the exact location and time.

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Lost Male Cat last seen Cienega and Glendora Ave, Covina, CA 91724

Reported 8 months ago, updated 1 week ago

Monty Male Cat

LOST PawBoost ID: 72525687


Covina, CA 91724

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Lost Male Cat last seen Monterey, Pomona, CA 91767

Reported 1 year ago, updated 1 week ago

Catnip Male Cat

LOST PawBoost ID: 71692291


Pomona, CA 91767

On his right hind leg is a black spot, and also he has some dwarfism.

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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 – 2,315,269 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.