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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.

869 lost dogs in your search

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

Reported 3 weeks ago

Whiskey Male Dog

LOST PawBoost ID: 72871457


Rialto, CA 92376

View Pet

Lost Female Dog last seen Pepper and 4st , Bloomington, CA 92316

Reported 3 months ago, updated 3 weeks ago

Pepper Female Dog

LOST PawBoost ID: 72632643


Bloomington, CA 92316

Frenc bulldog small brinde

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Lost Female Dog last seen Pacific st and palm, Highland, CA 92346

Reported 3 weeks ago

Pebbles Female Dog

LOST PawBoost ID: 72870820


Highland, CA 92346

Brown and white Brendle

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Lost Female Dog last seen Aqueduct, Chino Hills, CA 91709

Reported 3 weeks ago

Winnie Female Dog

LOST PawBoost ID: 72870781


Chino Hills, CA 91709

A brown/light brown dachshund with a winnie name on a collar

View Pet

Lost Male Dog last seen Near Camino Real jurupa Valley CA , Riverside, CA 92509

Reported 3 weeks ago

Charlie Diego Male Dog

LOST PawBoost ID: 72870747


Riverside, CA 92509

Big brown spot in the back, the rest white hair has a microchip

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Lost Male Dog last seen Main st, Corona, CA 92879

Reported 10 months ago, updated 3 weeks ago

Puggie Male Dog

LOST PawBoost ID: 71895026


Corona, CA 92879

Brown and white long hair chihuahua

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Lost Female Dog last seen Near lochmere ave, La Puente, CA 91744

Reported 2 months ago, updated 3 weeks ago

Chiquibaby Female Dog

LOST PawBoost ID: 72761299


La Puente, CA 91744

White/ beige chihuahua 4-6 punds

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Lost Female Dog last seen animal shelter , Jurupa Valley, CA 92509

Reported 4 weeks ago, updated 4 weeks ago

Indica Female Dog

LOST PawBoost ID: 72859980


Jurupa Valley, CA 92509

she goes by indica I don't know if she has a new owner I just want my puppy back she hyper and playful

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Lost Male Dog last seen Sequoia & Live Oak, Fontana, CA 92335

Reported 4 weeks ago

Combo Male Dog

LOST PawBoost ID: 72868305


Fontana, CA 92335

pitbull mix brown brindle He’s not wearing a collar

View Pet

Lost Male Dog last seen carnelian and 19th street, Rancho Cucamonga, CA 91730

Reported 1 month ago, updated 4 weeks ago

Boo Male Dog

LOST PawBoost ID: 72834260


Rancho Cucamonga, CA 91730

beige white pomeranian

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Lost Male Dog last seen Crescent ave , San Bernardino, CA 92401

Reported 4 weeks ago

Parker James Male Dog

LOST PawBoost ID: 72868110


San Bernardino, CA 92401

Blue diamond collar and a spot by his tail

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Lost Male Dog last seen Citrus & Jurupa, Fontana, CA 92337

Reported 4 weeks ago

Banzai Male Dog

LOST PawBoost ID: 72868041


Fontana, CA 92337

Grey and white American bully

View Pet

Lost Female Dog last seen Mount Vernon , San Bernardino, CA 92411

Reported 4 weeks ago

Pumpkin Female Dog

LOST PawBoost ID: 72867407


San Bernardino, CA 92411

View Pet

Lost Male Dog last seen Romona & Webster near chevron gas station , Perris, CA 92571

Reported 4 weeks ago

Mikey Male Dog

LOST PawBoost ID: 72867362


Perris, CA 92571

Fluffy white with brown stain marks on mouth & legs

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Lost Male Dog last seen Spruce and valley Rialto , Rialto, CA 92316

Reported 4 weeks ago

Bear Male Dog

LOST PawBoost ID: 72866619


Rialto, CA 92316

Large white shepherd

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Lost Female Dog last seen Norwood And Arlington Ave, Riverside, CA 92505

Reported 4 weeks ago

Unknown Female Dog

LOST PawBoost ID: 72865233


Riverside, CA 92505

Black and brown

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Lost Female Dog last seen merced/ puente , Baldwin Park, CA 91706

Reported 4 weeks ago

Pippy Female Dog

LOST PawBoost ID: 72863686


Baldwin Park, CA 91706

black small shepard

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Lost Female Dog last seen Renault and Hambledon, La Puente, CA 91744

Reported 4 weeks ago, updated 4 weeks ago

Laila Female Dog

LOST PawBoost ID: 72854269


La Puente, CA 91744

Really old slow walking, wearing a flea collar and a purple harness

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Lost Male Dog last seen Del Rosa, San Bernardino, CA 92404

Reported 4 weeks ago

Chico Male Dog

LOST PawBoost ID: 72862513


San Bernardino, CA 92404

Tan in color, toy fox terrior breed

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Lost Male Dog last seen Near Rubidoux blvd , Riverside, CA 92509

Reported 4 weeks ago

Willy Male Dog

LOST PawBoost ID: 72861918


Riverside, CA 92509

Yorkie

View Pet

Lost Dog Data for Ontario, CA

There are 869 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 – 2,229,305 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.