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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.

977 lost cats in your search

Lost Male Cat last seen Near Mitchell ave Tustin C.a 92780, Tustin, CA 92780

Reported 4 weeks ago

Olaf Male Cat

LOST PawBoost ID: 73422159


Tustin, CA 92780

White so sweet friendly

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Lost Male Cat last seen Central ave and notthingham, alcott elementary school, Riverside, CA 92506

Reported 4 weeks ago

Binx Male Cat

LOST PawBoost ID: 73422146


Riverside, CA 92506

He is a Manx (tail-less) tuxedo

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Lost Male Cat last seen Esteli park, Brea, CA 90631

Reported 2 months ago, updated 4 weeks ago

Sebastian Male Cat

LOST PawBoost ID: 73279652


Brea, CA 90631

Ragdoll Blue eyes, Seal point, heavy cat.

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Lost Male Cat last seen Near Dade Ave. La Puente ca 91744, La Puente, CA 91744

Reported 1 month ago, updated 4 weeks ago

Tiger Male Cat

LOST PawBoost ID: 73383955


La Puente, CA 91744

Grey with white spots

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Lost Female Cat last seen Avenue D perris, Perris, CA 92570

Reported 4 weeks ago, updated 4 weeks ago

Gatoobi Female Cat

LOST PawBoost ID: 73412238


Perris, CA 92570

Black spec on her nose

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Lost Male Cat last seen Bonita Ave, San Dimas, CA 91773

Reported 1 month ago, updated 4 weeks ago

Toothless Male Cat

LOST PawBoost ID: 73391475


San Dimas, CA 91773

Black cat with green eyes

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Lost Male Cat last seen Mountain and Schaefer Avenues, Chino, Chino, CA 91710

Reported 3 months ago, updated 4 weeks ago

Koshka Male Cat

LOST PawBoost ID: 73117401


Chino, CA 91710

Brown black striped tabby

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Lost Female Cat last seen Santa Ana Canyon, Fairmont, and Circulo Robel, Anaheim, CA 92807

Reported 3 months ago, updated 4 weeks ago

Rebecca Female Cat

LOST PawBoost ID: 73104434


Anaheim, CA 92807

Dark brown, fluffy tail, approximately 9-10 months old. Please call me if you happen to find her or see her.. Thank you!

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Lost Unknown Cat last seen ball yardley, Anaheim, CA 92804

Reported 4 weeks ago

Honey Unknown Cat

LOST PawBoost ID: 73418744


Anaheim, CA 92804

mix short breed with maincoon

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Lost Male Cat last seen Near etiwanda rd rancho Cucamonga, Rancho Cucamonga, CA 91739

Reported 3 months ago, updated 4 weeks ago

Bean Beans Male Cat

LOST PawBoost ID: 73189658


Rancho Cucamonga, CA 91739

Male, grey and black tabby with white paws, 3 years old, neutered,family friendly,very smart, 4 small black strips above green/blueish eyes white paw

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Lost Male Cat last seen Ball Rd and State College Anaheim, Anaheim, CA 92805

Reported 4 weeks ago, updated 4 weeks ago

Biggie Smalls Male Cat

LOST PawBoost ID: 73405937


Anaheim, CA 92805

All grey Russian Blue/ green eyes

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Lost Male Cat last seen Rio vista elementary, Anaheim, CA 92806

Reported 4 weeks ago

Smoky Male Cat

LOST PawBoost ID: 73417988


Anaheim, CA 92806

He’s a light grey and cream tabby cat very friendly he’s not neutered

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

Reported 2 months ago, updated 4 weeks 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 Male Cat last seen Ceres and allegan, Whittier, CA 90604

Reported 9 months ago, updated 4 weeks ago

Bojo Male Cat

LOST PawBoost ID: 72535552


Whittier, CA 90604

Orange and white green eyes back paws look like he has white boots on

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Lost Male Cat last seen MacArthur Way and San Rafael Dr, Buena Park, CA 90620

Reported 4 weeks ago

10-week-old Male Cat

LOST PawBoost ID: 73417166


Buena Park, CA 90620

Helping an elderly neighbor find her missing 10-week-old (2-month-old) male tabby kitten. His back legs are white socks. The attached picture is from when he was a month old. If you found him or have seen him please let us know! He went missing the morning of Tuesday September 22nd. He is bonded with a sibling who misses him terribly.

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Lost Female Cat last seen Canyon mist lane and Lost canyon road, Anaheim, CA 92808

Reported 2 months ago, updated 4 weeks ago

Zoya Female Cat

LOST PawBoost ID: 73276042


Anaheim, CA 92808

Gray black Savannah talkative cat

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Lost Male Cat last seen Earlham and Jordan, Orange, CA 92869

Reported 1 month ago, updated 4 weeks ago

Gerald Male Cat

LOST PawBoost ID: 73378807


Orange, CA 92869

Grey Tabby cat

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Lost Male Cat last seen phillips blvd, Pomona, CA 91766

Reported 3 months ago, updated 4 weeks ago

Lone Male Cat

LOST PawBoost ID: 73206075


Pomona, CA 91766

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

Reported 2 months ago, updated 4 weeks 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 Male Cat last seen Madison &victoria st, San Bernardino, CA 92411

Reported 3 months ago, updated 4 weeks ago

Dj Male Cat

LOST PawBoost ID: 73193572


San Bernardino, CA 92411

Had a white collar

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Lost Cat Data for Ontario, CA

There are 977 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 – 2,334,310 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.