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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.

1028 lost dogs in your search

Lost Female Dog last seen Intersection of Towne and Holt, San Antonio and Holt, Pomona, CA 91767

Reported 2 weeks ago, updated 6 days ago

Peppa Female Dog

LOST PawBoost ID: 73097366


Pomona, CA 91767

Black Chihuahua/ Shi Tzu mix, snaggle tooth, white hair on chest, very small about 8-12 lbs, 7 years old, very sweet and friendly

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Lost Male Dog last seen Hawthorne Ave 16400, Fontana, CA 92335

Reported 1 week ago, updated 6 days ago

Barky Male Dog

LOST PawBoost ID: 73135100


Fontana, CA 92335

white coat and tan‑to‑gray fading on his ears, along with a black nose.

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Lost Female Dog last seen Teremore tract, Temescal Valley, CA 92883

Reported 2 weeks ago, updated 6 days ago

Shmuppy Female Dog

LOST PawBoost ID: 73102424


Temescal Valley, CA 92883

Brindle with two different color eyes.

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Lost Female Dog last seen Near California Ave, West Covina, CA 91790, West Covina, CA 91790

Reported 1 week ago, updated 6 days ago

Petal Female Dog

LOST PawBoost ID: 73134969


West Covina, CA 91790

Long-haired and fluffy with a brown, black, and grey coat, white paws, and her face is white fur with grey around her eyes like raccoon eyes

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

Reported 1 week ago, updated 6 days 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 Near first ave, Whittier, CA 90604

Reported 6 days ago

Dakota Male Dog

LOST PawBoost ID: 73143921


Whittier, CA 90604

Star Wars bandana on neck

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Lost Male Dog last seen Bolero dr fontana, Fontana, CA 92337

Reported 1 week ago, updated 6 days ago

Balu Male Dog

LOST PawBoost ID: 73129651


Fontana, CA 92337

Black mix chow

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Lost Female Dog last seen Baseline/cedar, Rialto, CA 92376

Reported 1 week ago, updated 6 days ago

Lado Female Dog

LOST PawBoost ID: 73132669


Rialto, CA 92376

Light brown female chihuahua jack russel mix

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Lost Female Dog last seen sierra ave, Fontana, CA 92331

Reported 1 month ago, updated 6 days ago

Sofia Female Dog

LOST PawBoost ID: 73031673


Fontana, CA 92331

brown black sheens shepper

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Lost Female Dog last seen Within the terramore community, Temescal Valley, CA 92883

Reported 2 weeks ago, updated 6 days ago

Shmuppy Female Dog

LOST PawBoost ID: 73102620


Temescal Valley, CA 92883

Medium size, brimble, pit with heterochromial eyes

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Lost Male Dog last seen N Lilac Ave Rialto Ca, Rialto, CA 92376

Reported 2 weeks ago, updated 6 days ago

Milo Male Dog

LOST PawBoost ID: 73102490


Rialto, CA 92376

Black & brown wiener dog mix. Brown eyes

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Lost Male Dog last seen Near shell and walking across baseline, Fontana, CA 92336

Reported 6 days ago

Churro Male Dog

LOST PawBoost ID: 73143116


Fontana, CA 92336

Germine Sheppard very sweet

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

Reported 1 month ago, updated 6 days ago

Zeuss Male Dog

LOST PawBoost ID: 73006183


San Bernardino, CA 92407

Golden/tan poodle mix he’s deaf but very friendly and fun

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Lost Male Dog last seen Near fremontia ave fontana ca, Fontana, CA 92335

Reported 6 days ago

chapo Male Dog

LOST PawBoost ID: 73142882


Fontana, CA 92335

golden retriever, 70 pounds, 11 months, brown/ golden

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Lost Female Dog last seen Orange grove and San Juan st / Pomona valley hosp, Pomona, CA 91767

Reported 2 weeks ago, updated 6 days ago

Grandma Female Dog

LOST PawBoost ID: 73100633


Pomona, CA 91767

All white jack Russel chihuahua mix She is microchipped.

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Lost Male Dog last seen Towne and foothill, Pomona, CA 91767

Reported 1 week ago, updated 7 days ago

Little Bear Male Dog

LOST PawBoost ID: 73136754


Pomona, CA 91767

Corgi Chihuahua mix mostly black white çhest tan feet with short little legs. Intelligent lovely guy

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Lost Male Dog last seen Franklin ave/reservoir st near f&a market, Pomona, CA 91766

Reported 1 week ago, updated 7 days ago

Max Male Dog

LOST PawBoost ID: 73132379


Pomona, CA 91766

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Lost Female Dog last seen Glendora Ave., Glendora, CA 91740

Reported 3 weeks ago, updated 7 days ago

Cherry Female Dog

LOST PawBoost ID: 73066486


Glendora, CA 91740

bluish, grayish, brownish color, very light brindle Female Frenchie. if you call her name and she responds, I’m almost positive that is my dog. Her name is Cherry 🍒 please contact me anytime. she’s a good dog. She listens to direct well…she’s really chill and she has somewhat like a senior sounding like bark.

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Lost Male Dog last seen Sycamore and Anaheim Blvd, Anaheim, CA 92805

Reported 2 years ago, updated 7 days ago

Coco Male Dog

LOST PawBoost ID: 70783602


Anaheim, CA 92805

Black and brown Chorkie (half Chihuahua and Yorkshire terrier)

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Lost Female Dog last seen West Evans Street, San Bernardino, CA 92411 of America, San Bernardino, CA 92411

Reported 1 month ago, updated 7 days ago

Marley Female Dog

LOST PawBoost ID: 72996825


San Bernardino, CA 92411

She has a month old hair cut but her hair is still short and she has anxiety she does not bite

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Lost Dog Data for Ontario, CA

There are 1028 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 – 2,268,584 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.