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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.

1035 lost dogs in your search

Lost Male Dog last seen Orange grove and Huntington., Pomona, CA 91768

Reported 2 months ago, updated 3 days ago

Cepillin Male Dog

LOST PawBoost ID: 73078784


Pomona, CA 91768

Brown Shih Tzu

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Lost Female Dog last seen San Marino/last tunas, San Gabriel, CA 91775

Reported 3 days ago

Stella Female Dog

LOST PawBoost ID: 73331871


San Gabriel, CA 91775

Grayish eyebrows

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Lost Male Dog last seen Hastings and Hunter St., Jurupa Valley, CA 91752

Reported 2 months ago, updated 3 days ago

Pulga Male Dog

LOST PawBoost ID: 73101203


Jurupa Valley, CA 91752

Black Labrador and pitbull mixed

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Lost Female Dog last seen Arrow hwy between Mountain and Benson, Upland, CA 91786

Reported 1 month ago, updated 3 days ago

Luna Female Dog

LOST PawBoost ID: 73186175


Upland, CA 91786

Black German shepherd with a small white spot on her chest and greyish white around her muzzle . Very friendly but gets a little nervous if she's scared. Which I'm sure she is.

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Lost Male Dog last seen McKinley, Corona, CA 92879

Reported 6 days ago, updated 4 days ago

Archie And Ace Male Dog

LOST PawBoost ID: 73323388


Corona, CA 92879

White Maltese ; gray pit

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Lost Male Dog last seen C street Colton ca, Colton, CA 92324

Reported 1 year ago, updated 4 days ago

Bolt Male Dog

LOST PawBoost ID: 71606032


Colton, CA 92324

white and light brown spots on body, 1 year old male, black circle spots on nose and black spots on stomach

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Lost Female Dog last seen Locust and Merrill, Fontana, CA 92335

Reported 3 weeks ago, updated 4 days ago

Koco Female Dog

LOST PawBoost ID: 73268332


Fontana, CA 92335

Small white pomeranian

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Lost Female Dog last seen Duffy ST. AND BLAKE ST, Muscoy, CA 92407

Reported 2 months ago, updated 4 days ago

Meme Female Dog

LOST PawBoost ID: 73128690


Muscoy, CA 92407

Dark brown and white spot on both eyes

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Lost Male Dog last seen 3rd and sierra near Manuel p Moreno jr park, San Bernardino, CA 92410

Reported 5 months ago, updated 4 days ago

Ruby Male Dog

LOST PawBoost ID: 72766665


San Bernardino, CA 92410

Small Brown and white spots Chihuahua

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Lost Male Dog last seen Santa Bianca dr, Hacienda Heights, CA 91745

Reported 4 days ago

Dundun Male Dog

LOST PawBoost ID: 73330061


Hacienda Heights, CA 91745

Name dundun, brown color, about 15lbs

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Lost Female Dog last seen Main st, La Puente, CA 91744

Reported 3 months ago, updated 4 days ago

Luna Female Dog

LOST PawBoost ID: 72973372


La Puente, CA 91744

Reddish Brown hair, White stripe down nose. White belly and paws

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Lost Male Dog last seen Tyler and Washington, El Monte, CA 91733

Reported 1 month ago, updated 4 days ago

Koko Male Dog

LOST PawBoost ID: 73182186


El Monte, CA 91733

He’s withe and Yellow

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Lost Male Dog last seen Frederick and Eucalyptus, Moreno Valley, CA 92553

Reported 6 months ago, updated 4 days ago

Kobe Male Dog

LOST PawBoost ID: 72606839


Moreno Valley, CA 92553

Male white and tan Shih Tzu. He has one eye that’s partially blue. At the time, his fur was long and was covering his eyes. He was wearing a blue collar.

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Lost Female Dog last seen Poulsen and Yale, Montclair, CA 91763

Reported 4 days ago

Bailey Female Dog

LOST PawBoost ID: 73329585


Montclair, CA 91763

Brown with white. Chihuahua

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Lost Male Dog last seen San Bernardino Ave., Fontana, CA 92335

Reported 8 months ago, updated 4 days ago

Baxter Male Dog

LOST PawBoost ID: 72463184


Fontana, CA 92335

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Lost Male Dog last seen Cedar and West Cedar, Bloomington, CA 92316

Reported 4 weeks ago, updated 4 days ago

Anubis Male Dog

LOST PawBoost ID: 73238596


Bloomington, CA 92316

He's a French Bulldog with a fawn type color with a white patch on his chest. Only has one testicle and is chipped.

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Lost Male Dog last seen Limonite & Fespar, Riverside, CA 92509

Reported 4 days ago, updated 4 days ago

Ottis Male Dog

LOST PawBoost ID: 73328986


Riverside, CA 92509

BLUE EYES WITH A PINK NOSE HE HAS A SCAB ON HIS STOMACH

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Lost Female Dog last seen Pennsylvania & E St COLTON CA, Colton, CA 92324

Reported 2 months ago, updated 4 days ago

Lily Female Dog

LOST PawBoost ID: 73111972


Colton, CA 92324

$$ LOST DOG - COLTON $$ Pennsylvania & E St Spayed female (green tattoo on tummy) Goes by Lily Owner searching everywhere Are you keeping her safe? Have you seen her?

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Lost Male Dog last seen Hewes and esplanade, Orange, CA 92869

Reported 4 days ago

Churro Male Dog

LOST PawBoost ID: 73328622


Orange, CA 92869

Tan chiwenie about 8 years old

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Lost Male Dog last seen Circle k 4th and sierra, Norco, CA 92860

Reported 4 days ago

Coal Male Dog

LOST PawBoost ID: 73328563


Norco, CA 92860

Black pug old

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Lost Dog Data for Ontario, CA

There are 1035 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 – 2,301,210 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.