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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.

1028 lost dogs in your search

Lost Male Dog last seen Longview, ocotillo, Fontana, CA 92335

Reported 2 days ago

Ekko Male Dog

LOST PawBoost ID: 73161151


Fontana, CA 92335

German shepherd, Belgian Malinois mix

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Lost Male Dog last seen Fir Ave Moreno Valley, Moreno Valley, CA 92555

Reported 2 days ago

Charlie Male Dog

LOST PawBoost ID: 73161139


Moreno Valley, CA 92555

Grey frenchie, downward ears, white stripe down his ches

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Lost Male Dog last seen Day st, Perris, CA 92570

Reported 2 days ago

Leo Arias Male Dog

LOST PawBoost ID: 73161136


Perris, CA 92570

Golden brown black Yorkie with a gray collar named Leo

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Lost Female Dog last seen Maxson durfee ferris valley, El Monte, CA 91732

Reported 4 days ago, updated 2 days ago

Cariño Female Dog

LOST PawBoost ID: 73153683


El Monte, CA 91732

White matipoo with brown ears and brown spots on her back

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Lost Male Dog last seen N La Loma Cir, Anaheim, CA 92806

Reported 4 days ago, updated 2 days ago

Coco Male Dog

LOST PawBoost ID: 73153723


Anaheim, CA 92806

Dark gray and white fur, small dog, black eyes, fluffy fur, about one feet tall

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Lost Male Dog last seen brockton, Riverside, CA 92501

Reported 2 days ago

Thor Male Dog

LOST PawBoost ID: 73161103


Riverside, CA 92501

one eye blonde grey

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Lost Male Dog last seen Frankfort Ave. Fontana, CA 92335, Fontana, CA 92335

Reported 2 days ago

Rex Male Dog

LOST PawBoost ID: 73161060


Fontana, CA 92335

Male German shepherd

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Lost Female Dog last seen Jurupa ave. And Poplar st, Fontana, CA 92337

Reported 3 weeks ago, updated 2 days ago

Layla Female Dog

LOST PawBoost ID: 73086611


Fontana, CA 92337

Tan with white and black tail line. Curled tail.

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Lost Female Dog last seen Azusa ave, West Covina, CA 91791

Reported 2 weeks ago, updated 2 days ago

Hazle Female Dog

LOST PawBoost ID: 73115247


West Covina, CA 91791

Brown female dermanshepard puppy

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Lost Male Dog last seen Alder ave. Palmetto ave. Granada ave. Alder ave. Tamarind ave. Etc, Fontana, CA 92335

Reported 4 months ago, updated 2 days ago

Chocolate Male Dog

LOST PawBoost ID: 72724217


Fontana, CA 92335

Perro , con cafesito claro (blanco), orejas grandes.

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Lost Female Dog last seen Park Center and Wineville Ave, Norco, CA 92860

Reported 1 month ago, updated 2 days ago

Jemm Female Dog

LOST PawBoost ID: 72982077


Norco, CA 92860

Tan and Cream Aussie Labrador Mix

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Lost Male Dog last seen E st & 25th, San Bernardino, CA 92405

Reported 2 weeks ago, updated 2 days ago

Tyson Male Dog

LOST PawBoost ID: 73118443


San Bernardino, CA 92405

Black and white Shih Tzu's name is Tyson. He was wandering around while I was watering the grass. I know he's not far from his area please if you have him please I beg you give him back me and my kids are so destroyed. We love him and we need him back, please I beg you bring them back home please.

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Lost Female Dog last seen By the big pool in creekside east, Ontario, CA 91761

Reported 2 years ago, updated 2 days ago

Bella Female Dog

LOST PawBoost ID: 70500083


Ontario, CA 91761

She is a white Chihuahua. She is around 3 years old, with little brown spots on her stomach, and wearing a blue

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Lost Male Dog last seen Palm and center, Baldwin Park, CA 91706

Reported 2 days ago

Oliver Male Dog

LOST PawBoost ID: 73159487


Baldwin Park, CA 91706

Toy poodle mix with tan/ white coat pink nose

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Lost Female Dog last seen 5th st, San Bernardino, CA 92411

Reported 4 days ago, updated 2 days ago

Nairobi Female Dog

LOST PawBoost ID: 73151618


San Bernardino, CA 92411

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Lost Female Dog last seen 30th st and arrowhead, San Bernardino, CA 92405

Reported 2 days ago

Eevie Female Dog

LOST PawBoost ID: 73159267


San Bernardino, CA 92405

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Lost Female Dog last seen L street, San Bernardino, CA 92411

Reported 4 days ago, updated 2 days ago

Max Female Dog

LOST PawBoost ID: 73151089


San Bernardino, CA 92411

Very very friendly not mean Always nice and never mean, please if you seen max around or on the streets please lets us know my daughter dogs wife dog very sad and please will give awards for finding dog or returning dog

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Lost Male Dog last seen Meridian st, Chino, CA 91708

Reported 3 weeks ago, updated 2 days ago

XiaoDi (DiDi) Male Dog

LOST PawBoost ID: 73060016


Chino, CA 91708

Shih Tzu

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Lost Male Dog last seen Towns and foothill, Pomona, CA 91767

Reported 2 days ago

Little bear Male Dog

LOST PawBoost ID: 73158584


Pomona, CA 91767

Corgi mix black with white chest and tips of feet with tan legs. Weighs about 15lb

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Lost Female Dog last seen Arden and Lynwood, Highland, CA 92346

Reported 7 days ago, updated 2 days ago

Pinky Female Dog

LOST PawBoost ID: 73140052


Highland, CA 92346

Black and white husky puppy

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Lost Dog Data for Ontario, CA

There are 1028 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 – 2,268,349 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.