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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.

947 lost dogs in your search

Lost Male Dog last seen San Bernardino high school, San Bernardino, CA 92408

Reported 3 months ago, updated 2 months ago

Little Man/coco Male Dog

LOST PawBoost ID: 73221192


San Bernardino, CA 92408

Black, some white near his nose

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Lost Female Dog last seen Near la deny st montclair ca 91763, Montclair, CA 91763

Reported 2 months ago

Layla Female Dog

LOST PawBoost ID: 73310714


Montclair, CA 91763

White spot on chest. She might have a hot spot on her lower back

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Lost Male Dog last seen Baseline San Bernardino, San Bernardino, CA 92411

Reported 2 months ago, updated 2 months ago

Tank Male Dog

LOST PawBoost ID: 73264683


San Bernardino, CA 92411

He has a grey dot in his white chest.

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Lost Male Dog last seen Ivar and Longden in Temple City, East San Gabriel, CA 91780

Reported 2 months ago

Roo Male Dog

LOST PawBoost ID: 73309035


East San Gabriel, CA 91780

Helping the owners find their dog. Let me know if you have him or see him. I know about scammers so don't bother trying to scam me.

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Lost Female Dog last seen 40th, San Bernardino, CA 92404

Reported 1 year ago, updated 2 months ago

Frenchie Female Dog

LOST PawBoost ID: 72061009


San Bernardino, CA 92404

Creme color Frenchie pregnant

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Lost Male Dog last seen brockton, Riverside, CA 92501

Reported 3 months ago, updated 2 months ago

Thor Male Dog

LOST PawBoost ID: 73161103


Riverside, CA 92501

one eye blonde grey

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Lost Female Dog last seen Hillside ave and El Paso, Norco, CA 92860

Reported 2 months ago

Bella Female Dog

LOST PawBoost ID: 73307144


Norco, CA 92860

Green harness

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Lost Female Dog last seen Carlton st, San Bernardino, CA 92405

Reported 2 months ago

Luna Female Dog

LOST PawBoost ID: 73306447


San Bernardino, CA 92405

Yellow/Tan her face is black

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Lost Male Dog last seen Curtis and Beach, Fontana, CA 92336

Reported 3 months ago, updated 2 months ago

Rocko Male Dog

LOST PawBoost ID: 73223725


Fontana, CA 92336

Pomeranian with the spot on his nose and a cyst on his eye

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Lost Female Dog last seen near E Bastanchury Rd across Fullerton Sports complex, Fullerton, CA 92835

Reported 3 months ago, updated 2 months ago

Cookie Female Dog

LOST PawBoost ID: 73207007


Fullerton, CA 92835

🐾 Breed: Maltipoo 🐾 Color: Tan 🐾 Weight: About 12 lbs 🐾 Age: 18 years old

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Lost Male Dog last seen Kendall Drive and mountain drive, Arrowhead Farms, CA 92407

Reported 2 months ago, updated 2 months ago

Charly Male Dog

LOST PawBoost ID: 73296918


Arrowhead Farms, CA 92407

White Maltese mix with brown on his lower back

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Lost Male Dog last seen Ivar ave. Nearby teacup plaza in temple city, Temple City, CA 91780

Reported 2 months ago

Roo Male Dog

LOST PawBoost ID: 73304620


Temple City, CA 91780

No collar. Big ears, very friendly. He likes to wag his tail. He’s tan in color. Runs very fast. Tear marks under his eyes

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Lost Female Dog last seen University and chicago, Riverside, CA 92507

Reported 5 months ago, updated 2 months ago

Sassy Arellano Female Dog

LOST PawBoost ID: 72957106


Riverside, CA 92507

Brown and redish chiwawa female 6 pounds

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Lost Male Dog last seen Food 4 less and bottle n corn liquor store, El Monte, CA 91733

Reported 6 months ago, updated 2 months ago

FIRUZE Male Dog

LOST PawBoost ID: 72817436


El Monte, CA 91733

Bump on his chest, white and black whiskers, brown fur is mixed with black

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Lost Male Dog last seen Pasadena and foothill, Azusa, CA 91702

Reported 2 months ago, updated 2 months ago

Cheeto Male Dog

LOST PawBoost ID: 73300624


Azusa, CA 91702

White short curly

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Lost Male Dog last seen Near frandsen street, San Gabriel, CA 91776

Reported 2 months ago

Max Male Dog

LOST PawBoost ID: 73302840


San Gabriel, CA 91776

Black and white Chihuahua wearing a chain collar

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Lost Female Dog last seen Highland and medical center, San Bernardino, CA 92411

Reported 3 months ago, updated 2 months ago

Zoey Female Dog

LOST PawBoost ID: 73179434


San Bernardino, CA 92411

Small smoothed coat chihuahua.

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Lost Male Dog last seen Near Nevada Ave El Monte CA 91731, near El Monte High school, Cyber Yogurt,, El Monte, CA 91731

Reported 2 months ago

Twister Male Dog

LOST PawBoost ID: 73301229


El Monte, CA 91731

White and light brown

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Lost Female Dog last seen Última vez vista por Philadelphia st y haven ave, E Philadelphia St, CA 91752

Reported 2 months ago

Pelusa Female Dog

LOST PawBoost ID: 73301227


E Philadelphia St, CA 91752

Es una perra negra con blanca al momento no traía su medalla de la información en caso de pérdida lo dejó en su collar que te tengo en casa pero su nombre es pelusa la perrita entiende puro español

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Lost Female Dog last seen Boardwalk Drive & Challen, Riverside, CA 92503

Reported 8 months ago, updated 2 months ago

Happy Female Dog

LOST PawBoost ID: 72620081


Riverside, CA 92503

Tan with white on face and paws wearing a lavender harness

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Lost Dog Data for Ontario, CA

There are 947 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 – 2,334,592 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.