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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.

1086 lost dogs in your search

Lost Male Dog last seen Cherry, Fontana, CA 92337

Reported 3 weeks ago

Max Male Dog

LOST PawBoost ID: 73064923


Fontana, CA 92337

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Lost Male Dog last seen summit ave, Fontana, CA 92336

Reported 3 weeks ago

Benito Male Dog

LOST PawBoost ID: 73064630


Fontana, CA 92336

black medium size

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Lost Female Dog last seen Harvest moon, La Puente, CA 91744

Reported 3 weeks ago

Unknown Female Dog

LOST PawBoost ID: 73063922


La Puente, CA 91744

White dog

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Lost Male Dog last seen Fullerton or Batson, Rowland Heights, CA 91748

Reported 1 month ago, updated 3 weeks ago

Zuko Male Dog

LOST PawBoost ID: 72993012


Rowland Heights, CA 91748

White and greyish brown. Right eye has a grey spot the Left eye is white

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Lost Female Dog last seen Between West Grand Blvd. & North Merrill st., Corona, CA 92882

Reported 5 months ago, updated 3 weeks ago

Manchita Female Dog

LOST PawBoost ID: 72619785


Corona, CA 92882

Black & White mix of Maltese & shih Tzu about 14bl.

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Lost Male Dog last seen Fuego Ave, Falcon ave, Pomona, CA 91767

Reported 2 months ago, updated 4 weeks ago

Jr. Male Dog

LOST PawBoost ID: 72935779


Pomona, CA 91767

Has a small scar on his ear, is 10-12yrs, older dog, he’s missing some of his teeth.

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Lost Male Dog last seen 16th and Sepulveda, San Bernardino, CA 92404

Reported 3 months ago, updated 4 weeks ago

Oreo Male Dog

LOST PawBoost ID: 72830422


San Bernardino, CA 92404

White hand paws

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Lost Male Dog last seen Near Mc Donald's .. C Karina road and Fullerton road Rowland Heights, City of Industry, CA 91748

Reported 1 month ago, updated 4 weeks ago

Papa's Male Dog

LOST PawBoost ID: 72988481


City of Industry, CA 91748

New black and white beautiful love me female brother and sister you were 4 months old tried together who is there a dog nleash. Baby chase down by two young girls and putting into a red SUV posted they posted a post with the number and the message saying they found my badges which is not true and I'm I've been calling that and ever since last month and I've got no answer. Please return my puppies

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Lost Female Dog last seen Mc Donalds City.of industry near the corner of Colima rd and Fullerton rd, Rowland Heights, CA 91748

Reported 4 weeks ago

Pretty Female Dog

LOST PawBoost ID: 73061244


Rowland Heights, CA 91748

Pretty is a Chubby Black and White Lab Mix

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Lost Male Dog last seen Mc Donalds City.of industry near the corner of Colima rd and Fullerton rd, City of Industry, CA 91748

Reported 4 weeks ago, updated 4 weeks ago

Papa Male Dog

LOST PawBoost ID: 73053374


City of Industry, CA 91748

Papas is a black and white Lab Mix

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Lost Male Dog last seen deana, El Monte, CA 91732

Reported 4 weeks ago

Tequila Male Dog

LOST PawBoost ID: 73060969


El Monte, CA 91732

he’s a small black dog with curly hair his beard is turing white

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Lost Female Dog last seen Santa Anita, El Monte, CA 91731

Reported 4 weeks ago

Luna Female Dog

LOST PawBoost ID: 73060968


El Monte, CA 91731

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Lost Male Dog last seen San dimas, San Dimas, CA 91773

Reported 1 month ago, updated 4 weeks ago

Goldie Male Dog

LOST PawBoost ID: 72996843


San Dimas, CA 91773

He have blue eye and he is brown and white color medium size, he barely not even one year old yet and he have strong pawns his walking is not straight he doesn't barks

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Lost Female Dog last seen Main and Culver, Orange, CA 92868

Reported 4 weeks ago

Avie Female Dog

LOST PawBoost ID: 73058423


Orange, CA 92868

Fawn female pug

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Lost Male Dog last seen sunset crossing rd, Diamond Bar, CA 91765

Reported 2 months ago, updated 4 weeks ago

Pansito Male Dog

LOST PawBoost ID: 72968607


Diamond Bar, CA 91765

Black, white and brown parti yorkie

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Lost Female Dog last seen Any, Whittier, CA 90605

Reported 4 weeks ago

Maya And Kira Female Dog

LOST PawBoost ID: 73056978


Whittier, CA 90605

They are really friendly and they’re really kind. We love those dogs.

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Lost Male Dog last seen Near east constitution way, Fontana, CA 92336

Reported 4 weeks ago

Mookie Male Dog

LOST PawBoost ID: 73056970


Fontana, CA 92336

Friendly, barks a lot

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Lost Male Dog last seen Orangewood and Euclid, Garden Grove, CA 92840

Reported 4 weeks ago, updated 4 weeks ago

Milo & Oreo Male Dog

LOST PawBoost ID: 73047361


Garden Grove, CA 92840

Brown chihuahua is Milo and white with grey spots is Oreo

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Lost Female Dog last seen Park Ave. & comer, Riverside, CA 92502

Reported 9 months ago, updated 4 weeks ago

Belle Female Dog

LOST PawBoost ID: 72218953


Riverside, CA 92502

Pomerian mix

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Lost Female Dog last seen 17Th and grand Ave, Santa Ana, CA 92705

Reported 4 weeks ago

Molly Female Dog

LOST PawBoost ID: 73054477


Santa Ana, CA 92705

Black medium size

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Lost Dog Data for Ontario, CA

There are 1086 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 – 2,269,124 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.