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Lost Dogs Database for Ontario, CA

Search lost and found dogs, as well as other pets, in the Ontario area with PawBoost.

883 lost dogs in your search

Lost Male Dog last seen Mountain Ave Duarte ca, Duarte, CA 91010

Reported 3 months ago, updated 3 months ago

Buddy Male Dog

LOST PawBoost ID: 73110085


Duarte, CA 91010

Has gained weight but almost the same hair cut

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Lost Male Dog last seen I st, San Bernardino, CA 92405

Reported 3 months ago

Maverick Male Dog

LOST PawBoost ID: 73177548


San Bernardino, CA 92405

Siberian husky mix

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Lost Male Dog last seen Merrill, Fontana, CA 92335

Reported 3 months ago, updated 3 months ago

Arlo Male Dog

LOST PawBoost ID: 73165063


Fontana, CA 92335

Brown and white

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Lost Male Dog last seen Groverdale and Lark Ellen, Covina, CA 91722

Reported 4 months ago, updated 3 months ago

Walter Male Dog

LOST PawBoost ID: 73009255


Covina, CA 91722

He is a small brown yorkie. He has a neurological disorder that causes him to lick the air.

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Lost Female Dog last seen Harrison Park, Riverside, CA 92503

Reported 3 months ago, updated 3 months ago

Bella Female Dog

LOST PawBoost ID: 73166669


Riverside, CA 92503

White Maltipoo

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Lost Male Dog last seen Riverside dr, Ontario, CA 91761

Reported 3 months ago

Oso Male Dog

LOST PawBoost ID: 73174119


Ontario, CA 91761

Small , shy

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Lost Male Dog last seen E Rainview Ct & The Highlands, Anaheim, CA 92808

Reported 4 months ago, updated 3 months ago

Chico Male Dog

LOST PawBoost ID: 73070772


Anaheim, CA 92808

Black senior chihuahua with a white diamond on his chest

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Lost Male Dog last seen Van wig avenue & Caglerio street, West Puente Valley, CA 91746

Reported 3 months ago, updated 3 months ago

Chewy Male Dog

LOST PawBoost ID: 73134432


West Puente Valley, CA 91746

Grey wire hair fur, with no tail but a nub. Raspy bark and weights around 45 lbs. short stubby legs & squished face like a pig & frenchie.

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Lost Dog Data for Ontario, CA

There are 883 lost dogs in Ontario, CA.

Find Local Dog Shelters in Ontario, CA

PawBoost has communities of dog-lovers across the country and beyond that help find missing dogs, and that means partnerships with dog 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 Dog Sooner with PawBoost

When you have a missing dog, it can be difficult to know what to do in the moment.

How do I find my dog? Do I have to visit the dog 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 dog owners find their furry loved ones – 2,335,013 pets reunited and counting!

Find your lost dog faster with PawBoost.

Report Lost Dog

Frequently Asked Questions

I lost my dog. What should I do?

Take advantage of online platforms – they help you get the word out, quickly and easily. You can report your lost dog 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 dog to our lost & found, and make a lost dog flyer – all for free.

Other sites that help you raise local awareness for your lost dog 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 dog'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 dog for more actionable tips.

Where do I report a lost dog in Ontario, CA?

If you lost a dog, we would like to help. You can report a lost dog to PawBoost for free to help find your dog 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 dog?

You don't have to pay to find your lost pet with PawBoost. PawBoost's free dog finder services have helped millions of people reunite with their lost dogs.

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.