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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.

947 lost dogs in your search

Lost Female Dog last seen Marion ave, Montclair, CA 91763

Reported 1 month ago

Chloe Female Dog

LOST PawBoost ID: 73360791


Montclair, CA 91763

Chihuahua peluda

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Lost Female Dog last seen danby ave and floral, Whittier, CA 90602

Reported 1 month ago

Maple Female Dog

LOST PawBoost ID: 73360626


Whittier, CA 90602

caramel color 9 pounds

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Lost Male Dog last seen CERES DR & PALMETTO, Fontana, CA 92335

Reported 1 month ago

Toothless Male Dog

LOST PawBoost ID: 73360180


Fontana, CA 92335

Chihuahua mix, stubby tail, wearing a collar with his name and contact phone number

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Lost Female Dog last seen Houston head toward Gilbert, Anaheim, CA 92801

Reported 1 month ago

Chiquis Female Dog

LOST PawBoost ID: 73358430


Anaheim, CA 92801

Beige with faint spots, Hazel eyes

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Lost Male Dog last seen Trail between devore and cajon, San Bernardino County, CA 92407

Reported 5 months ago, updated 1 month ago

Rocky Male Dog

LOST PawBoost ID: 72884865


San Bernardino County, CA 92407

Black and white Siberian husky. Seizure Alert Dog for my 4 years old daughter. Please contact me ASAP, my daughter had 2 seizures since then and have taken her to hosp as a emergency because it has been too late for the medical aid, without the dog giving me a previous advice.

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Lost Male Dog last seen Waterman, San Bernardino, CA 92404

Reported 3 months ago, updated 1 month ago

Thor Male Dog

LOST PawBoost ID: 73111390


San Bernardino, CA 92404

Breed is Morkie and he’s white with gray hair

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Lost Female Dog last seen Last seen near Dakota St. in Anaheim, Anaheim, CA 92805

Reported 1 month ago, updated 1 month ago

Polly Female Dog

LOST PawBoost ID: 73349364


Anaheim, CA 92805

White Maltese mix, thin, brown freckles on nose, limps when walking, right eye is cloudy due to vision problems, walks in circles because of this

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Lost Female Dog last seen Columbia and 1400 research Park Dr, Riverside, CA 92507

Reported 4 months ago, updated 1 month ago

Vanilla Female Dog

LOST PawBoost ID: 73088039


Riverside, CA 92507

She's all white with pink nose her eyes orange yellowish .

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Lost Male Dog last seen Near beech ave, Fontana, CA 92335

Reported 1 month ago, updated 1 month ago

Max Male Dog

LOST PawBoost ID: 73348801


Fontana, CA 92335

black at the top with some gray hairs and is brown at the bottom

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Lost Female Dog last seen Oriente Drive Yorba Linda, Yorba Linda, CA 92886

Reported 1 month ago

Puppet Female Dog

LOST PawBoost ID: 73355322


Yorba Linda, CA 92886

black with tan/cream markings and a scruffy coat.

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Lost Female Dog last seen Beverly and Poplar, Montebello, CA 90640

Reported 1 month ago

Ramsey Female Dog

LOST PawBoost ID: 73355090


Montebello, CA 90640

White face with a black eye patch and a hernia bump on her belly from birth

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Lost Female Dog last seen 17th street, kenwood, San Bernardino, CA 92404

Reported 1 month ago

Atzi Female Dog

LOST PawBoost ID: 73354417


San Bernardino, CA 92404

German shepherd

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Lost Male Dog last seen Jurupa valley, Jurupa Valley, CA 91752

Reported 1 month ago

Ekko Male Dog

LOST PawBoost ID: 73354338


Jurupa Valley, CA 91752

Oreo frenchie Australian cattle dog, black spots

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Lost Female Dog last seen Valley Boulevard and Arden ., El Monte, CA 91731

Reported 1 month ago

Alissa Female Dog

LOST PawBoost ID: 73354161


El Monte, CA 91731

Light brown

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Lost Male Dog last seen G St and Pennsylvania Ave, Colton, CA 92324

Reported 1 month ago

Milo Male Dog

LOST PawBoost ID: 73353950


Colton, CA 92324

Brown

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Lost Male Dog last seen Norwalk, Norwalk, CA 90650

Reported 3 months ago, updated 1 month ago

Boy Girl Girl Male Dog

LOST PawBoost ID: 73157414


Norwalk, CA 90650

Two white dogs and one brownish light

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Lost Female Dog last seen Hacienda blvd, City of Industry, CA 91744

Reported 1 month ago, updated 1 month ago

Blu Female Dog

LOST PawBoost ID: 73352657


City of Industry, CA 91744

All black

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Lost Male Dog last seen Goldenrod and norton, Chino, CA 91710

Reported 1 month ago

Jay Male Dog

LOST PawBoost ID: 73352921


Chino, CA 91710

Black chihuahua with gray on head

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Lost Male Dog last seen Philadelphia st and fern, Ontario, CA 91762

Reported 1 month ago

Max Male Dog

LOST PawBoost ID: 73352842


Ontario, CA 91762

He’s a dash hound

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Lost Male Dog last seen Alder ave. Palmetto ave. Granada ave. Alder ave. Tamarind ave. Etc, Fontana, CA 92335

Reported 7 months ago, updated 1 month ago

Chocolate Male Dog

LOST PawBoost ID: 72724217


Fontana, CA 92335

Perro , con cafesito claro (blanco), orejas grandes.

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Lost Dog Data for Ontario, CA

There are 947 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 – 2,334,500 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.