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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.

894 lost dogs in your search

Lost Male Dog last seen Puente fransquito, Baldwin Park, CA 91790

Reported 3 weeks ago, updated 2 weeks ago

Lantz Male Dog

LOST PawBoost ID: 73436206


Baldwin Park, CA 91790

He is timid to strangers and loving he is allways protective of his surroundings

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Lost Female Dog last seen Rose Dr., Blake, Yorba Linda, CA 92886

Reported 2 weeks ago, updated 2 weeks ago

Luna Female Dog

LOST PawBoost ID: 73462446


Yorba Linda, CA 92886

Siberian Husky, White with blue eyes

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Lost Female Dog last seen Waterman Ave, San Bernardino, CA 92404

Reported 3 months ago, updated 2 weeks ago

Maya Female Dog

LOST PawBoost ID: 73114503


San Bernardino, CA 92404

Mixed Jack Parson terrier

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Lost Male Dog last seen Near E Rosecrans Brea, Brea, CA 92821

Reported 2 weeks ago

Rourou Male Dog

LOST PawBoost ID: 73470993


Brea, CA 92821

Eight-year-old male toy poodle. He has black fur, he’s small, and weighs approximately

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Lost Female Dog last seen E Jackson St & N Acadia Ave, Rialto, CA 92376

Reported 2 weeks ago

Bella Female Dog

LOST PawBoost ID: 73469088


Rialto, CA 92376

Brown & Black Yorkie IF YOU SEE HER PLEASE CALL 626*540*9401

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Lost Male Dog last seen Cipreses, Riverside, CA 92505

Reported 4 weeks ago, updated 2 weeks ago

Hulk Male Dog

LOST PawBoost ID: 73409454


Riverside, CA 92505

Tiene muy largo su pelo

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

Reported 8 months ago, updated 2 weeks 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 Male Dog last seen Elder and foxhound Moreno Valley, ca, Moreno Valley, CA 92555

Reported 4 months ago, updated 2 weeks ago

Brinks Male Dog

LOST PawBoost ID: 73075383


Moreno Valley, CA 92555

Belgian malinois mix, puppy 11months, very nice, timid

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Lost Female Dog last seen Sierra lakes, Fontana, CA 92336

Reported 2 weeks ago

Lucy Female Dog

LOST PawBoost ID: 73468257


Fontana, CA 92336

Golden retriever with red bow

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Lost Female Dog last seen Rubidioux, Riverside, CA 92504

Reported 2 months ago, updated 2 weeks ago

Lucha Female Dog

LOST PawBoost ID: 73315748


Riverside, CA 92504

5 lb yorki. Super friendly

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Lost Male Dog last seen Avenida del vista, Corona, CA 92883

Reported 3 weeks ago, updated 2 weeks ago

Milo Male Dog

LOST PawBoost ID: 73458924


Corona, CA 92883

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Lost Male Dog last seen Glendale ave, Anaheim, CA 92801

Reported 3 weeks ago, updated 2 weeks ago

Panchito Male Dog

LOST PawBoost ID: 73451221


Anaheim, CA 92801

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Lost Female Dog last seen Sycamore hills park, Fontana, CA 92337

Reported 1 month ago, updated 2 weeks ago

Bereta Female Dog

LOST PawBoost ID: 73405445


Fontana, CA 92337

Grey with a few brown stripes

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Lost Male Dog last seen Redwood ave and ivy ave, Fontana, CA 92335

Reported 4 years ago, updated 2 weeks ago

Spike Male Dog

LOST PawBoost ID: 68796576


Fontana, CA 92335

Third time posted with a more better picture of Spike and a better description. Small brown dog with an overbite and long legs, He also has a scar on his snout that may have healed by now and also has one on his front right foot. He looks exactly like in the photo, it's frustrating not have been able to find him after that long ago. Have going to the shelter multiple times putting up flyers. Since it's unknown what happened to him please contact immediately if seen.

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Lost Male Dog last seen Ramona, Montclair, CA 91763

Reported 2 weeks ago

Tsar Male Dog

LOST PawBoost ID: 73464681


Montclair, CA 91763

Rottweiler

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Lost Male Dog last seen Marquesa apmts promenade near McKinley, Corona, CA 92879

Reported 2 months ago, updated 2 weeks ago

Archie Male Dog

LOST PawBoost ID: 73331284


Corona, CA 92879

White Maltese mix make doggy

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Lost Male Dog last seen San Bernardino ave and Raylene Pl, Pomona, CA 91767

Reported 2 weeks ago

Blade Male Dog

LOST PawBoost ID: 73463883


Pomona, CA 91767

All black shepherd mix

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Lost Male Dog last seen Blossom & Hill Grove EASTVALE CA, Eastvale, CA 92880

Reported 2 weeks ago

Milo Male Dog

LOST PawBoost ID: 73463808


Eastvale, CA 92880

LOST DOG - EASTVALE Blossom & Hill Grove Was spotted on Sendera Ave but spotter did not contain 😢 Altered male, MILO No collar but is microchipped Family out searching for him Are you keeping him safe? Please help find him ASAP

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Lost Female Dog last seen 17th and n kenwood ave, San Bernardino, CA 92404

Reported 1 month ago, updated 2 weeks ago

Atzy Female Dog

LOST PawBoost ID: 73347997


San Bernardino, CA 92404

German shepherd

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Lost Male Dog last seen Citrus and summit, Fontana, CA 92335

Reported 3 weeks ago, updated 2 weeks ago

Porky Male Dog

LOST PawBoost ID: 73455169


Fontana, CA 92335

Merle frenchie

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Lost Dog Data for Ontario, CA

There are 894 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 – 2,334,394 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.