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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.

954 lost dogs in your search

Lost Male Dog last seen California, Buena Park, CA 90621

Reported 4 weeks ago

Bullet Male Dog

LOST PawBoost ID: 72858128


Buena Park, CA 90621

Looks like a miniature Rottweiler he may or may not have his collar on if he does its the same one he has like the picture please help me find him

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Lost Female Dog last seen Rialto highschool, Rialto, CA 92376

Reported 4 weeks ago, updated 4 weeks ago

Choco Female Dog

LOST PawBoost ID: 72858104


Rialto, CA 92376

All black with small grey line on neck going down

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Lost Male Dog last seen Near Portola st San Bernardino C.A 92407, Muscoy, CA 92407

Reported 4 months ago, updated 4 weeks ago

Chico Male Dog

LOST PawBoost ID: 72520804


Muscoy, CA 92407

Tan

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Lost Male Dog last seen Near post office, Santa Ana, CA 92702

Reported 4 weeks ago

Lucky Male Dog

LOST PawBoost ID: 72858067


Santa Ana, CA 92702

1 year old dog

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Lost Female Dog last seen Marshall Blvd E, N Sterling Ave, San Bernardino, CA 92401

Reported 4 months ago, updated 4 weeks ago

Coco Female Dog

LOST PawBoost ID: 72583897


San Bernardino, CA 92401

Small White Chihuahua/Shih Tzu

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Lost Male Dog last seen Miller and Almeria Avenue, Fontana, CA 92336

Reported 4 weeks ago

Miko Male Dog

LOST PawBoost ID: 72858056


Fontana, CA 92336

Small Yorkie, 3 years old, not chipped and has a bell on his collar.

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Lost Male Dog last seen Mountain woods st Colton ca 92324, Colton, CA 92324

Reported 4 months ago, updated 4 weeks ago

Smokey Male Dog

LOST PawBoost ID: 72586946


Colton, CA 92324

He knows his name Black Maltipoo Age: 5 Years 05 Months Birthday is June His paws are white Howls back if you howl to him

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Lost Male Dog last seen Sierra slover, Fontana, CA 92337

Reported 3 months ago, updated 4 weeks ago

Tig Male Dog

LOST PawBoost ID: 72649969


Fontana, CA 92337

He's a big boy tan and droopy eyes

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Lost Male Dog last seen 15th st, upland ca, Upland, CA 91786

Reported 1 month ago, updated 4 weeks ago

Hunter Male Dog

LOST PawBoost ID: 72826992


Upland, CA 91786

German Shepard

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Lost Male Dog last seen McAllister Pkwy and Hillsmont Ln, Riverside, CA 92503

Reported 2 months ago, updated 4 weeks ago

JJ. Male Dog

LOST PawBoost ID: 72776822


Riverside, CA 92503

Pomeranian, small, 5lbs, cream colored fur, lots of fur, his paws look like grinch hands.

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Lost Female Dog last seen Main firts, Santa Ana, CA 92701

Reported 1 month ago, updated 4 weeks ago

Luna Female Dog

LOST PawBoost ID: 72808064


Santa Ana, CA 92701

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Lost Female Dog last seen Roosevelt & Bkuff, Montebello, CA 90640

Reported 4 weeks ago

Osa & Jimmy Female Dog

LOST PawBoost ID: 72852841


Montebello, CA 90640

Husky is white with blue and brown eye. Pug is black with white highlights

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

Reported 4 weeks ago

Calica Female Dog

LOST PawBoost ID: 72852683


El Monte, CA 91731

White with brown spots. Light brown eyes

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Lost Female Dog last seen Beech ave, Fontana, CA 92335

Reported 4 weeks ago

Prieta Female Dog

LOST PawBoost ID: 72851434


Fontana, CA 92335

Black and tan bullterrier

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Lost Male Dog last seen Mills and San Bernardino St. , Pomona, CA 91767

Reported 1 month ago, updated 4 weeks ago

Typhon Aceves Male Dog

LOST PawBoost ID: 72841476


Pomona, CA 91767

XL BULLY

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Lost Female Dog last seen Cactus and Randall , Rialto, CA 92376

Reported 1 month ago, updated 4 weeks ago

Bella Female Dog

LOST PawBoost ID: 72797824


Rialto, CA 92376

Grey with white pitbull 3 yrs

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Lost Female Dog last seen Vincent and San Bernardino , Covina, CA 91722

Reported 4 weeks ago

Molly Female Dog

LOST PawBoost ID: 72850084


Covina, CA 91722

Molly is a very chubby black pug with a small white patch on her chest. She has big brown eyes, a short flt face, floppy ears, and a curled tail.

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Lost Male Dog last seen Sunset and  Foothill blvd , Monrovia, CA 91016

Reported 2 years ago, updated 4 weeks ago

Zeus Male Dog

LOST PawBoost ID: 70330940


Monrovia, CA 91016

Black n brown poodle mix he's not neutered

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Lost Male Dog last seen Mission and mountain view, Loma Linda, CA 92354

Reported 3 months ago, updated 4 weeks ago

Dabs Male Dog

LOST PawBoost ID: 72606390


Loma Linda, CA 92354

Tri color English bull terrier black white and brown

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Lost Female Dog last seen San Bernardino st, Montclair, CA 91763

Reported 1 month ago

Nina Female Dog

LOST PawBoost ID: 72846843


Montclair, CA 91763

Nina is a sweet loving dog he is light brown and black with a white chest and her hair is straight and soft

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Lost Dog Data for Ontario, CA

There are 954 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 – 2,229,720 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.