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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 Male Cat last seen Prospect Avenue & Center Street, Highgrove, 92507 Riverside CA, Highgrove, CA 92507

Reported 1 week ago, updated 45 mins ago

Tigre Male Cat

LOST PawBoost ID: 73385788


Highgrove, CA 92507

Wears a white flea collar now, side patterns looks like a black swirl

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Lost Female Cat last seen Winwood Hills / El Modena Park area, Santa Ana, CA 92705

Reported 1 hour ago

Lucy Female Cat

LOST PawBoost ID: 73426477


Santa Ana, CA 92705

Brownish/gray tabby with white chest and paws

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Lost Unknown Cat last seen Winglane, La Puente, CA 91744

Reported 3 hours ago

Stray cat Unknown Cat

LOST PawBoost ID: 73426422


La Puente, CA 91744

Stray orange cat

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Lost Male Cat last seen kips Korner and partridge, Norco, CA 92860

Reported 3 weeks ago, updated 4 hours ago

Bo Male Cat

LOST PawBoost ID: 73345287


Norco, CA 92860

maine coon

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Lost Male Cat last seen Cienega & Grand, Covina, CA 91724

Reported 2 days ago, updated 4 hours ago

Boots (bootsie) Male Cat

LOST PawBoost ID: 73417790


Covina, CA 91724

Sweet Fluffy Handsome Long-haired Black Tuxedo Cat with Large white chest markings, white paws, & white line under nose. Possibly wearing a blue collar with name tag & microchip info tag

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Lost Female Cat last seen Near Hacienda Dr Duarte ca, Duarte, CA 91010

Reported 6 months ago, updated 4 hours ago

Ripley Female Cat

LOST PawBoost ID: 72757448


Duarte, CA 91010

Grey and white female, around 8 lbs. Had black collar on with tags when went missing. Likely hiding.

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Lost Male Cat last seen Westmont area in pomona, Pomona, CA 91766

Reported 2 days ago, updated 5 hours ago

Kilo Male Cat

LOST PawBoost ID: 73417716


Pomona, CA 91766

Black and white male cat with black spots on his nose and green/yellow eyes

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Lost Male Cat last seen 6th and Pine Street, Riverside, CA 92501

Reported 3 weeks ago, updated 5 hours ago

Meatball Male Cat

LOST PawBoost ID: 73333027


Riverside, CA 92501

All black cat. Yellow eyes with tiny white patch on chest.

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Lost Male Cat last seen Terra Vista/ Spruce, Rancho Cucamonga, CA 91730

Reported 5 hours ago

Habibi Male Cat

LOST PawBoost ID: 73426244


Rancho Cucamonga, CA 91730

Mix Siamese, Blue eyes, cream colored with dark tail and highlights

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Lost Male Cat last seen hemlock st, Moreno Valley, CA 92557

Reported 5 hours ago

Gala Male Cat

LOST PawBoost ID: 73426241


Moreno Valley, CA 92557

white cat persa

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Lost Female Cat last seen woodgate and elmhurst ct., Yorba Linda, CA 92886

Reported 5 months ago, updated 6 hours ago

Mabel Female Cat

LOST PawBoost ID: 72808513


Yorba Linda, CA 92886

black and white medium size

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Lost Female Cat last seen Summit Park, Anaheim, CA 92808

Reported 9 hours ago

Rosie Female Cat

LOST PawBoost ID: 73425736


Anaheim, CA 92808

White and Gray tabby

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Lost Female Cat last seen Parking lot, Eastvale, CA 91752

Reported 1 month ago, updated 9 hours ago

Peperonni Female Cat

LOST PawBoost ID: 73302866


Eastvale, CA 91752

Black medium hair ragdoll

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Lost Female Cat last seen Jellick and Colima GW Market, Rowland Heights, CA 91748

Reported 9 hours ago

Chilly Female Cat

LOST PawBoost ID: 73425527


Rowland Heights, CA 91748

Grey and white with pink nose

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Lost Male Cat last seen Pomona Fairgrounds, Pomona, CA 91768

Reported 2 years ago, updated 9 hours ago

Toker Male Cat

LOST PawBoost ID: 70634839


Pomona, CA 91768

Light orange, got his collar off

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Lost Male Cat last seen Pomona fairgrounds trailer park, Pomona, CA 91768

Reported 3 years ago, updated 9 hours ago

Nacho Male Cat

LOST PawBoost ID: 69431706


Pomona, CA 91768

Nacho is a very sweet cat, very long and thin. My other cat just passed a week ago and he was Nachos best friend, I believe Nacho may have gotten out to look for him and now I’m heartbroken at losing him too! Please help me find him!

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Lost Male Cat last seen Hamilton st, Rancho Cucamonga, CA 91701

Reported 9 hours ago

Oly Male Cat

LOST PawBoost ID: 73425488


Rancho Cucamonga, CA 91701

Orange and white long hair male 1 year old cat

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Lost Female Cat last seen Ironwood st., Moreno Valley, CA 92557

Reported 3 days ago, updated 9 hours ago

Boomer Female Cat

LOST PawBoost ID: 73413420


Moreno Valley, CA 92557

Black and white

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Lost Female Cat last seen Orange ave and Barton rd, Redlands, CA 92373

Reported 4 months ago, updated 10 hours ago

Kaos Female Cat

LOST PawBoost ID: 72944240


Redlands, CA 92373

Tabby gray black stripes orange spot on forehead

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Lost Male Cat last seen 6th ave Arcadia, Arcadia, CA 91006

Reported 2 months ago, updated 10 hours ago

Siul Male Cat

LOST PawBoost ID: 73206216


Arcadia, CA 91006

Has strong markings and patterns

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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 – 2,315,225 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.