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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 Joe Sampson park, Anderson park, w Randall ave, s lilac ave , Rialto, CA 92376

Reported 3 months ago, updated 3 months ago

Max Male Dog

LOST PawBoost ID: 72675647


Rialto, CA 92376

Black fur with brown fur on his face and big pointy ears.

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Lost Female Dog last seen Between golden w ave and Jurupa Rd, Riverside, CA 92509

Reported 3 months ago, updated 3 months ago

Loly Female Dog

LOST PawBoost ID: 72628164


Riverside, CA 92509

Salt and pepper

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Lost Female Dog last seen Escalona?, La Mirada, CA 90638

Reported 3 months ago

Blanca Female Dog

LOST PawBoost ID: 72682265


La Mirada, CA 90638

White dog with a black spot on back towards tail

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Lost Female Dog last seen Mt Vernon and Valley Blvd , Colton, CA 92324

Reported 3 months ago

Fluffy Female Dog

LOST PawBoost ID: 72681918


Colton, CA 92324

View Pet

Lost Female Dog last seen Francis / magnolia , Ontario, CA 91762

Reported 5 months ago, updated 3 months ago

Chiquis Female Dog

LOST PawBoost ID: 72487179


Ontario, CA 91762

View Pet

Lost Female Dog last seen Rancho street, Colton, CA 92324

Reported 3 months ago

Estrella Female Dog

LOST PawBoost ID: 72681755


Colton, CA 92324

Se salio de casa 15 de marzo en colton

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Lost Male Dog last seen Sultana and Euclid , Ontario, CA 91761

Reported 4 months ago, updated 3 months ago

Charlie Male Dog

LOST PawBoost ID: 72532777


Ontario, CA 91761

He is a Weiner and chihuahua mix

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Lost Female Dog last seen Penn and bright, Whittier, CA 90602

Reported 3 months ago, updated 3 months ago

Zena Female Dog

LOST PawBoost ID: 72634639


Whittier, CA 90602

White husky

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Lost Female Dog last seen Corner of zenith, La Puente, CA 91744

Reported 3 months ago

Lela Female Dog

LOST PawBoost ID: 72681490


La Puente, CA 91744

Petite baby pug has a very faint mole on left cheek

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Lost Female Dog last seen Mar Vista Street. , Whittier, CA 90604

Reported 5 months ago, updated 3 months ago

Julie Female Dog

LOST PawBoost ID: 72415063


Whittier, CA 90604

Small black grayish mix terrier

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Lost Female Dog last seen Raffia Lane between Hibiscus and Bamboo , Fontana, CA 92335

Reported 4 months ago, updated 3 months ago

Jenny Female Dog

LOST PawBoost ID: 72576980


Fontana, CA 92335

12 yrs old White Shih Tzu

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Lost Male Dog last seen Lincoln and Washington , Riverside, CA 92504

Reported 4 months ago, updated 3 months ago

Duke Male Dog

LOST PawBoost ID: 72579960


Riverside, CA 92504

Miniture schnauzer, gray, brown, shaggy right now. Docked tail, and walks with a little limp.

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Lost Male Dog last seen 9th and N Mountain View Avenue, San Bernardino, CA 92401

Reported 3 months ago, updated 3 months ago

Oso Male Dog

LOST PawBoost ID: 72657160


San Bernardino, CA 92401

Great Dane/Doberman

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Lost Male Dog last seen Continental st, El Monte, CA 91733

Reported 5 months ago, updated 3 months ago

Toby Male Dog

LOST PawBoost ID: 72427106


El Monte, CA 91733

Very friendly dog,

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Lost Male Dog last seen By superior in Fontana , Fontana, CA 92336

Reported 3 months ago

Gingy Male Dog

LOST PawBoost ID: 72679756


Fontana, CA 92336

Golden retriever

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Lost Female Dog last seen Valley blvd and palmetto , Fontana, CA 92335

Reported 3 months ago, updated 3 months ago

Pixie Female Dog

LOST PawBoost ID: 72602409


Fontana, CA 92335

Tan and white scruffy dog

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Lost Male Dog last seen Garey Ave, Pomona, CA 91767

Reported 5 months ago, updated 3 months ago

Blue Male Dog

LOST PawBoost ID: 72407911


Pomona, CA 91767

Light cream colored, short legs, bubble eyes

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Lost Male Dog last seen Rialto CA, Rialto, CA 92376

Reported 3 months ago

Luna Male Dog

LOST PawBoost ID: 72676682


Rialto, CA 92376

Blanca zu

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Lost Male Dog last seen Kansas and 14th st, Riverside, CA 92507

Reported 3 months ago

Donut Male Dog

LOST PawBoost ID: 72676203


Riverside, CA 92507

Reddish-Brown hair color yellow and green eyes stalky build had eye infection Someone posted a pic didn't get name but got number #72641237

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Lost Male Dog last seen Cactus ave, Rialto, CA 92376

Reported 3 months ago

Max Male Dog

LOST PawBoost ID: 72676145


Rialto, CA 92376

Black and tan

View Pet

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 – 2,229,995 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.