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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 Mission & Pipeline, Montclair, CA 91763

Reported 1 year ago, updated 3 days ago

Bessie Female Cat

LOST PawBoost ID: 71611512


Montclair, CA 91763

White and black kitty. She has half a black mark on her top left lip that looks kind of like a mustache.

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Lost Female Cat last seen Flying J on SLOVER AVE BY CHERRY AVE, Fontana, CA 92337

Reported 1 year ago, updated 3 days ago

Nala Female Cat

LOST PawBoost ID: 72027298


Fontana, CA 92337

Domestic long-medium hair black and white with upside down heart on nose, broken tail "bent down at tip" She has a chocolate color in the sun. NOT A SMALL CAT 18" HI & 3.5 FT LONG Had collar and tag w/bell when escaped from my semi. Call Sharp Transportation Logan UT (4*3*5)227*0891 Tk8115 And they will call me

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Lost Male Cat last seen Arlington and streeter, Riverside, CA 92504

Reported 5 months ago, updated 3 days ago

Frank Male Cat

LOST PawBoost ID: 72860303


Riverside, CA 92504

All black unless in the sun then he has a dark brown tint to him, right ear is clipped, the tip of his tongue sticks out sometimes due to him not having any teeth just his upper and lower fangs, short soft hair and a blue collar. Please call or text

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Lost Male Cat last seen Near a park around Trentino Lane, Yorba Linda, Yorba Linda, CA 92886

Reported 2 months ago, updated 3 days ago

Odysseus Male Cat

LOST PawBoost ID: 73244981


Yorba Linda, CA 92886

An American Shorthair, Bobtail cat, Grey mackerel tabby with some white coat pattern. Has yellow greenish eyes. Dark grey paw pads. Not wearing a collar, not microchipped. 9 Months old. Very playful, active, sassy cat and loves food. Meows a lot around people and is an indoor cat.

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Lost Female Cat last seen Valley and 2nd Ave, La Puente, CA 91744

Reported 5 months ago, updated 3 days ago

Dash Female Cat

LOST PawBoost ID: 72841703


La Puente, CA 91744

Friendly but shy

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Lost Male Cat last seen Hacienda Blvd and Colima Rd, Hacienda Heights, CA 91745

Reported 1 year ago, updated 3 days ago

Baby Kitty Male Cat

LOST PawBoost ID: 71740192


Hacienda Heights, CA 91745

Light color Siamese about 6years old, Neutered, comes to Baby Kitty, Very scared he's 1/2 wild & 1/2 tame you can pet him but can't pick him up or he freaks out.

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Lost Female Cat last seen Coastal transport llc 9448 Richmond Pl unit A Rancho Cucamonga, CA 91730, Rancho Cucamonga, CA 91730

Reported 2 years ago, updated 3 days ago

Shunashka Female Cat

LOST PawBoost ID: 70388802


Rancho Cucamonga, CA 91730

A short hair black cat, she has a tiny bump on her nose, also few white hairs on neck and lower belly.

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Lost Male Cat last seen California Ave and Arlington, Riverside, CA 92504

Reported 11 months ago, updated 3 days ago

Circuit Male Cat

LOST PawBoost ID: 72212060


Riverside, CA 92504

Dark brown tabby with black swirly pattern on his sides

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Lost Female Cat last seen LaVerne and Garey (on Sharon Drive, Pomona 91767), Pomona, CA 91767

Reported 1 month ago, updated 3 days ago

Nikita Female Cat

LOST PawBoost ID: 73302952


Pomona, CA 91767

Calico Cat, dark marking on nose, very sweet but shy

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Lost Female Cat last seen Aliss, Grand Terrace, CA 92313

Reported 1 month ago, updated 3 days ago

Harley Female Cat

LOST PawBoost ID: 73299201


Grand Terrace, CA 92313

Very friendly never leaves the yard

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Lost Female Cat last seen Collet, Riverside, CA 92505

Reported 3 years ago, updated 3 days ago

Pepper Female Cat

LOST PawBoost ID: 69358944


Riverside, CA 92505

Black f female cat with la little bit of white on her chest and under arms. She is microchipped

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Lost Male Cat last seen Help us find Nino! Domestic Shorthair last seen at 1909 Business Center Dr San Bernardino CA 92408., San Bernardino, CA 92408

Reported 3 days ago

Nino Male Cat

LOST PawBoost ID: 73413363


San Bernardino, CA 92408

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Lost Male Cat last seen Mountain view and Elm st, Loma Linda, CA 92354

Reported 3 days ago

Rocky Male Cat

LOST PawBoost ID: 73413328


Loma Linda, CA 92354

Mostly Black with patches of white on chest, underneath armpits, and near stomach.

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Lost Male Cat last seen Near Jurupa Ave, Fontana, CA 92337, Fontana, CA 92337

Reported 1 month ago, updated 3 days ago

Coco Male Cat

LOST PawBoost ID: 73274997


Fontana, CA 92337

White with gray but mainly white his tail it’s grey with like white stripes heavier he is super big he is 2 years and 5 months but super long and heavy like around 20 pounds his is super scared of anything or anyone he is super shy but really lovable he loves to eat and he enjoys playing with anything that is like a stick.. his nick name is (goigoo) Jurupa Ave, and Paciffic Ave last time we saw

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Lost Male Cat last seen W Arthur Ave, near Las Flores Ave, London Ave, and Palm Dr, in the area between Santa Anita Ave and El Monte Ave., Arcadia, CA 91007

Reported 5 days ago, updated 3 days ago

Clover Male Cat

LOST PawBoost ID: 73404802


Arcadia, CA 91007

Gray and white male cat with green eyes and a pink nose. White chest, belly, and legs, with dark gray/black tabby stripes on his back and a striped tail. He is neutered and is not microchipped. He has a distinctive white stripe running down the center of his face to his pink nose.

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Lost Male Cat last seen Elm ave, San Bernardino, CA 92404

Reported 2 weeks ago, updated 3 days ago

Nigel Male Cat

LOST PawBoost ID: 73377266


San Bernardino, CA 92404

Gray/white. Has a gray "mole" near his nose.

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Lost Male Cat last seen Vista del verde, Riverside, CA 92509

Reported 6 days ago, updated 3 days ago

Albert Male Cat

LOST PawBoost ID: 73403147


Riverside, CA 92509

He is 4yrs old and pretty large. He is a white and grey long hair cat. Has thumbs on his two front paws and a small white stripe on his back (his back is all grey, his chest and paws are white but his tail is grey).

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Lost Male Cat last seen McKinley and promenade, Corona, CA 92879

Reported 4 months ago, updated 3 days ago

George Male Cat

LOST PawBoost ID: 72973960


Corona, CA 92879

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Lost Male Cat last seen Schmidt rd, El Monte, CA 91732

Reported 5 months ago, updated 3 days ago

Bruce Male Cat

LOST PawBoost ID: 72766094


El Monte, CA 91732

Hea a big cat with white in his ears and his chest he has two white toes on his right foot a little scar on his ear and green eyes

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Lost Male Cat last seen gladstone and Amelia across from Costco. Near auto center off-ramp 57 N, San Dimas, CA 91773

Reported 1 week ago, updated 3 days ago

Cosmo Male Cat

LOST PawBoost ID: 73383978


San Dimas, CA 91773

Orange tabby. No collar. 13 years old. Has chip.

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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 – 2,315,233 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.