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

Reported 2 months ago, updated 2 weeks ago

Zuma Female Dog

LOST PawBoost ID: 73088490


West Covina, CA 91790

Brownish “Red” Doodle with black tippped ears

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Lost Female Dog last seen Via Bernardo, Corona, CA 92882

Reported 2 months ago, updated 2 weeks ago

Mona Female Dog

LOST PawBoost ID: 73106671


Corona, CA 92882

Cream/white long coat with a bluish/green collar.

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Lost Male Dog last seen Rancho Summit park, Rancho Cucamonga, CA 91739

Reported 2 months ago, updated 2 weeks ago

Remi Male Dog

LOST PawBoost ID: 73098914


Rancho Cucamonga, CA 91739

Small seal grey italian greyhound

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Lost Male Dog last seen N. McPherson St., La Habra, La Habra, CA 90631

Reported 1 month ago, updated 2 weeks ago

Junior Male Dog

LOST PawBoost ID: 73176302


La Habra, CA 90631

!!!$1000 REWARD!!! Extremely loved by many and very special to our family…Hazel green human like eyes, Pink nose, pink lip’s, off white curly fur - medium size poodle mix. Please try and give him food and water, if you approach he might run. Friendly and does not bite. Please call me at 626*644*8889 . Reward for helping in his return home. Very loved and very special.

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Lost Female Dog last seen Del obisbo rd, Fontana, CA 92337

Reported 3 weeks ago, updated 2 weeks ago

Princess Female Dog

LOST PawBoost ID: 73269498


Fontana, CA 92337

She has her hair more grown out she responds to Spanish and English ,she’s wearing a pink collar right now,

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Lost Female Dog last seen near the cross streets of Parkridge and La Entrada Ave/Tesoro Ave., Corona, CA 92879

Reported 1 month ago, updated 2 weeks ago

Molly Female Dog

LOST PawBoost ID: 73224090


Corona, CA 92879

Dachshund/ Brown and Black

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Lost Female Dog last seen Duffy st and w 1st ave, Muscoy, CA 92407

Reported 2 months ago, updated 2 weeks ago

Princessa Female Dog

LOST PawBoost ID: 73129815


Muscoy, CA 92407

Germán Shepard

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Lost Female Dog last seen Graves Ave & Del Mar Blvd, Rosemead, CA 91770

Reported 11 months ago, updated 2 weeks ago

Boba Female Dog

LOST PawBoost ID: 72083460


Rosemead, CA 91770

Older German Shephard

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Lost Male Dog last seen Wilson St and Myrtle or Currier, Pomona, CA 91768

Reported 3 months ago, updated 2 weeks ago

Taki Male Dog

LOST PawBoost ID: 72961785


Pomona, CA 91768

Light tan, right ear bends forward, anxious but friendly, no collar

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

Reported 4 months ago, updated 2 weeks ago

Deedee Female Dog

LOST PawBoost ID: 72868095


Riverside, CA 92505

Brown chihuahua

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

Reported 2 months ago, updated 2 weeks 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 Female Dog last seen Pigeon Pass and Box Sorings, Moreno Valley, CA 92557

Reported 6 months ago, updated 2 weeks ago

Marley Female Dog

LOST PawBoost ID: 72644126


Moreno Valley, CA 92557

Blue and white Kane Corso pitbull mix

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Lost Female Dog last seen Chickasaw Pass, Riverside, CA 92503

Reported 2 weeks ago

Chile Female Dog

LOST PawBoost ID: 73283537


Riverside, CA 92503

Red OLD mini dauchsund

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Lost Female Dog last seen 6th street /Grand, Corona, CA 92882

Reported 4 months ago, updated 2 weeks ago

Lucy Female Dog

LOST PawBoost ID: 72842741


Corona, CA 92882

Dark silver, curly fur w/suttle brown spots

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Lost Male Dog last seen Acacia and Margarita, Rialto, CA 92376

Reported 2 weeks ago

Chico Male Dog

LOST PawBoost ID: 73283307


Rialto, CA 92376

Burly 6 months and his name is Chico his brother is waiting for him

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Lost Male Dog last seen Merrill, Fontana, CA 92335

Reported 2 weeks ago

Blabber Male Dog

LOST PawBoost ID: 73279989


Fontana, CA 92335

Rot/Shepard Mix: Black & tan w/white mark on end of nose. Not neutered, no chip, no collar or tag.

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Lost Male Dog last seen S. Archilbald ave & Tower Dr, Ontario, CA 91761

Reported 3 weeks ago, updated 2 weeks ago

Oro Valencia Male Dog

LOST PawBoost ID: 73264968


Ontario, CA 91761

He's brown with white line in the middle of his eyes and his chest

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Lost Female Dog last seen Mt Vernon Ave, San Bernardino, CA 92411

Reported 2 months ago, updated 2 weeks ago

Nairobi Female Dog

LOST PawBoost ID: 73153364


San Bernardino, CA 92411

Germán Shepard mixed with husky. She’s bigger than what the picture shows.

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Lost Male Dog last seen las tunas dr, San Gabriel, CA 91775

Reported 3 weeks ago

jax Male Dog

LOST PawBoost ID: 73277970


San Gabriel, CA 91775

red lab

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Lost Male Dog last seen 16th st and Sierra ave, San Bernardino, CA 92405

Reported 4 months ago, updated 3 weeks ago

Olaf Male Dog

LOST PawBoost ID: 72894197


San Bernardino, CA 92405

He’s a white and brown fluffy dog he’s very small he has a really fluffy tail he was wearing a blue collar

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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 – 2,301,252 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.