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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.

1029 lost dogs in your search

Lost Female Dog last seen Near via bernardo, Corona, ca 92882, Corona, CA 92882

Reported 2 weeks ago, updated 1 hour ago

Mona Female Dog

LOST PawBoost ID: 73096461


Corona, CA 92882

White small dog. Fluffy, looks like cocapoo.

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Lost Female Dog last seen Palm hacienda, Hacienda Heights, CA 91745

Reported 1 hour ago

Mammas Female Dog

LOST PawBoost ID: 73169135


Hacienda Heights, CA 91745

Frenchie bull dog greyish under bite

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Lost Male Dog last seen Ironwood, Moreno Valley, CA 92553

Reported 2 weeks ago, updated 2 hours ago

Rex Male Dog

LOST PawBoost ID: 73095737


Moreno Valley, CA 92553

belgian malinois

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Lost Male Dog last seen Inside the mobile home Spc#21, Fontana, CA 92335

Reported 2 hours ago

Milo Sanchez Male Dog

LOST PawBoost ID: 73168797


Fontana, CA 92335

He white and light brown hair.Shy,Nervous

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Lost Male Dog last seen Ramona alessandro elementary school, San Bernardino, CA 92411

Reported 7 months ago, updated 3 hours ago

Scrapy Male Dog

LOST PawBoost ID: 72442792


San Bernardino, CA 92411

He is black and brown with a little white starting at his chest and paws. Flabby ears, brown nails. Has a dot on each side of his face. Very playful and protective.

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Lost Male Dog last seen East end and mission Blvd Pomona ca, Pomona, CA 91766

Reported 1 year ago, updated 5 hours ago

Benji Male Dog

LOST PawBoost ID: 71196742


Pomona, CA 91766

Gray small dog. Poodle and jorkie mix

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Lost Male Dog last seen Brea blvd and elm st, Brea, CA 92821

Reported 6 hours ago

Bandit Male Dog

LOST PawBoost ID: 73167819


Brea, CA 92821

Retriever mix

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Lost Male Dog last seen Los angeles st ans Center st., Baldwin Park, CA 91706

Reported 4 weeks ago, updated 6 hours ago

Toulouse Male Dog

LOST PawBoost ID: 73049809


Baldwin Park, CA 91706

Small shih poo, cream colored, overdue for a haircut. Weights about 10-15lbs.

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Lost Female Dog last seen Laurel Ave Brea, Brea, CA 92822

Reported 6 hours ago

Ellie Female Dog

LOST PawBoost ID: 73167756


Brea, CA 92822

3 pound Yorkie

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Lost Female Dog last seen Glendora, Glendora, CA 91740

Reported 4 weeks ago, updated 6 hours ago

Cherry Female Dog

LOST PawBoost ID: 73044947


Glendora, CA 91740

Female French bulldog

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Lost Male Dog last seen 9th and lankershim, Highland, CA 92346

Reported 1 month ago, updated 7 hours ago

Kodah Male Dog

LOST PawBoost ID: 72984331


Highland, CA 92346

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Lost Female Dog last seen Merced Pl & Glendora Ave, West Covina, CA 91790

Reported 3 weeks ago, updated 7 hours ago

Zuma Female Dog

LOST PawBoost ID: 73088490


West Covina, CA 91790

Brownish “Red” Doodle with black tippped ears

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Lost Male Dog last seen Vineland Ave & Pacific Ave, Baldwin Park, CA 91706

Reported 8 hours ago

Kobo Male Dog

LOST PawBoost ID: 73167272


Baldwin Park, CA 91706

White chihuahua with brown spots , had a small blue mark on his belly area

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Lost Male Dog last seen Shirebourn/eucalyptus, Moreno Valley, CA 92553

Reported 8 hours ago

Torto Male Dog

LOST PawBoost ID: 73167158


Moreno Valley, CA 92553

Pictures posted

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Lost Female Dog last seen 54th Street and Troth/Dodd, Jurupa Valley, CA 91752

Reported 2 weeks ago, updated 8 hours ago

Chikis Female Dog

LOST PawBoost ID: 73107183


Jurupa Valley, CA 91752

Tan 6pb maltipoo- shaved down

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Lost Male Dog last seen Merrill Fontana, Fontana, CA 92335

Reported 9 hours ago

Arlo Male Dog

LOST PawBoost ID: 73166848


Fontana, CA 92335

Brown and White Shauzer Multipoo

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Lost Male Dog last seen Memorial and gateway drive, Moreno Valley, CA 92553

Reported 9 hours ago

Bluey Male Dog

LOST PawBoost ID: 73166841


Moreno Valley, CA 92553

Terrier mix

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

Reported 9 hours ago

Bella Female Dog

LOST PawBoost ID: 73166669


Riverside, CA 92503

White Maltipoo

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Lost Male Dog last seen Frederick and Cottonwood, by Moreno Valley Community Park, Moreno Valley, CA 92553

Reported 10 hours ago

Pickles Male Dog

LOST PawBoost ID: 73166663


Moreno Valley, CA 92553

Yellow/golden chihuahua terrier mix, about 2 years old.

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Lost Female Dog last seen La Sierra and Cochran, Riverside, CA 92505

Reported 2 months ago, updated 10 hours ago

Deedee Female Dog

LOST PawBoost ID: 72868095


Riverside, CA 92505

Brown chihuahua

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Lost Dog Data for Ontario, CA

There are 1029 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 – 2,268,584 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.