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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.

985 lost dogs in your search

Lost Male Dog last seen 4th Street, Ontario, CA 91762

Reported 2 months ago, updated 1 week ago

Wilson Male Dog

LOST PawBoost ID: 73119696


Ontario, CA 91762

White scraggly terrier, brown nose

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Lost Male Dog last seen Trial, San Bernardino, CA 92407

Reported 1 month ago, updated 1 week ago

Leo Male Dog

LOST PawBoost ID: 73199841


San Bernardino, CA 92407

He is a black Havanese dog. A small/medium dog. His hair is curly and much more thicker then in the picture he looks like a little teddy bear.

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Lost Male Dog last seen Valley blvd La Puente CA USA, City of Industry, CA 91746

Reported 1 month ago, updated 1 week ago

Spike Male Dog

LOST PawBoost ID: 73177917


City of Industry, CA 91746

He’s a really light blonde, very fluffy, his fur is long. He doesn’t have a collar or a chip. He has a white spot on his forehead but it was more noticeable when he was a pup.

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Lost Male Dog last seen Kansas Ave and Roberta Street, Riverside, CA 92507

Reported 3 weeks ago, updated 1 week ago

Blu Male Dog

LOST PawBoost ID: 73269852


Riverside, CA 92507

He’s a 6 month old puppy with one brown eye and one blue eye. He’s been shaved down due to an infestation of fleas but they have been gotten rid of. His tail looks like a lion’s tail. He has a black face mark with a white patch on his chest and his snout. He responds to Blu (Blue) or Azul.

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Lost Male Dog last seen Near st, Corona, CA 92882

Reported 8 months ago, updated 1 week ago

SPIKELEE Male Dog

LOST PawBoost ID: 72407416


Corona, CA 92882

Black and white little brown is fixed long hire.white feet and belly white tip of his tail gos by the name of spike Lee about 25 pounds very smart loves the ball crys att night if not with me

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Lost Male Dog last seen Baseline and sterling, Highland, CA 92410

Reported 2 weeks ago, updated 1 week ago

Crowbar Male Dog

LOST PawBoost ID: 73288386


Highland, CA 92410

Grey pitbull

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Lost Female Dog last seen Marigold in Fontana, Fontana, CA 92335

Reported 4 weeks ago, updated 1 week ago

Milly Female Dog

LOST PawBoost ID: 73229600


Fontana, CA 92335

a terrier looking dog

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

Reported 1 week ago

Bella Female Dog

LOST PawBoost ID: 73315021


Fontana, CA 92336

Senior White Maltese

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Lost Male Dog last seen Santa Anita El Monte running towards the BUS STATION in El Monte., El Monte, CA 91731

Reported 1 week ago

Johnny Boy Male Dog

LOST PawBoost ID: 73315007


El Monte, CA 91731

White spot from nose and up going in between his lil eyes and he’s a light brown deer head Chihuahua.

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Lost Female Dog last seen Citrus St & Hillside dr, Covina, CA 91723

Reported 1 week ago

Labrador Female Dog

LOST PawBoost ID: 73314921


Covina, CA 91723

Blonde ish Tan, Large

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Lost Female Dog last seen Ogden st, Muscoy, CA 92407

Reported 4 weeks ago, updated 1 week ago

Nala Female Dog

LOST PawBoost ID: 73244422


Muscoy, CA 92407

Mixed pitbull and German Sheppard - Blue - 4 years old

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Lost Female Dog last seen Campbell and Reservoir Rd, Riverside, CA 92509

Reported 1 week ago, updated 1 week ago

Lucy Female Dog

LOST PawBoost ID: 73306631


Riverside, CA 92509

Salt and pepper long grey hair

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Lost Male Dog last seen Alleyway of Date st, Pomona, CA 91768

Reported 1 week ago

Bruno Male Dog

LOST PawBoost ID: 73314613


Pomona, CA 91768

A yorkie terrier with black and brown fur

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Lost Female Dog last seen Arrow hwy between Mountain and Benson, Upland, CA 91786

Reported 2 months ago, updated 1 week ago

Luna Lai Female Dog

LOST PawBoost ID: 73077387


Upland, CA 91786

Black with small white spot on her chest

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Lost Male Dog last seen Kendall drive and N. Mountain Drive, San Bernardino, CA 92407

Reported 1 week ago

Charlie Male Dog

LOST PawBoost ID: 73314351


San Bernardino, CA 92407

White Maltese Terrier Mix He's a senior white dog about 14 yrs. He has no teeth weight about 10lbs has small.brown spot near lower back by tail. Hes friendly

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Lost Male Dog last seen Colima & Halliburton, Hacienda Heights, CA 91745

Reported 2 months ago, updated 1 week ago

Chesty Male Dog

LOST PawBoost ID: 73134679


Hacienda Heights, CA 91745

Black and white French Bulldog 2 years old 25ish lbs

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Lost Male Dog last seen Phelan, CA, Phelan, CA 92371

Reported 1 week ago, updated 1 week ago

Appa Male Dog

LOST PawBoost ID: 73314045


Phelan, CA 92371

Black coat German Shepherd

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Lost Female Dog last seen Fifth st & Soldano, Azusa, CA 91702

Reported 4 months ago, updated 1 week ago

Kimba Female Dog

LOST PawBoost ID: 72871393


Azusa, CA 91702

Pug

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Lost Female Dog last seen Turnbull canyon & Avocado terrace, Hacienda Heights, CA 91746

Reported 2 years ago, updated 1 week ago

Sal Female Dog

LOST PawBoost ID: 71087815


Hacienda Heights, CA 91746

White dog. Old 5,6 pounds. Eats cut short

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Lost Female Dog last seen Cajon Dr & Oak St in Gavilan Hills, Lake Mathews, CA 92570

Reported 2 weeks ago, updated 1 week ago

Annie Female Dog

LOST PawBoost ID: 73303811


Lake Mathews, CA 92570

Yokie tan and black 11 lbs

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Lost Dog Data for Ontario, CA

There are 985 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.