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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 Male Dog last seen Near Hunter St, Perris, CA 92570

Reported 2 weeks ago

Tucki Male Dog

LOST PawBoost ID: 73093731


Perris, CA 92570

View Pet

Lost Female Dog last seen Dartmouth mobile s, Pomona, CA 91766

Reported 11 months ago, updated 2 weeks ago

Bebe Female Dog

LOST PawBoost ID: 71935233


Pomona, CA 91766

White with dark spots in the chest skin

View Pet

Lost Male Dog last seen Near locust ave b Bloomington, Bloomington, CA 92316

Reported 2 months ago, updated 2 weeks ago

Frenchy Male Dog

LOST PawBoost ID: 72872331


Bloomington, CA 92316

Two white dots above eyes

View Pet

Lost Male Dog last seen C street Colton ca, Colton, CA 92324

Reported 1 year ago, updated 2 weeks ago

Bolt Male Dog

LOST PawBoost ID: 71606032


Colton, CA 92324

white and light brown spots on body, 1 year old male, black circle spots on nose and black spots on stomach

View Pet

Lost Male Dog last seen Indian and Alessandro, Moreno Valley, CA 92553

Reported 2 weeks ago

Chuco Male Dog

LOST PawBoost ID: 73093545


Moreno Valley, CA 92553

White with black spots

View Pet

Lost Male Dog last seen Orange, Riverside, CA 92501

Reported 2 weeks ago

R.J. or Chunk Male Dog

LOST PawBoost ID: 73093341


Riverside, CA 92501

Has scar on belly ffrom a procedure and a bump on his foot.

View Pet

Lost Female Dog last seen Rubadoux and 29th, Jurupa Valley, CA 92509

Reported 3 months ago, updated 2 weeks ago

Tinkerbell Female Dog

LOST PawBoost ID: 72827077


Jurupa Valley, CA 92509

Black with some white stubby tail cattle dog

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Lost Female Dog last seen Lee ln, El Monte, CA 91731

Reported 3 weeks ago, updated 2 weeks ago

Lily Female Dog

LOST PawBoost ID: 73089344


El Monte, CA 91731

Small Yorkie brown lil black in back

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Lost Male Dog last seen Helena Ave and Briarwood, Riverside, CA 92504

Reported 3 weeks ago, updated 2 weeks ago

Lincoln Male Dog

LOST PawBoost ID: 73083244


Riverside, CA 92504

Black and brown PinchiPoo

View Pet

Lost Female Dog last seen The paw park, Pomona, CA 91766

Reported 2 weeks ago

Unsure Female Dog

LOST PawBoost ID: 73092918


Pomona, CA 91766

View Pet

Lost Female Dog last seen Near 3rd st, Riverside, CA 92501

Reported 2 weeks ago

Jazzy Female Dog

LOST PawBoost ID: 73092607


Riverside, CA 92501

Grey white

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Lost Male Dog last seen Rustic, Fontana, CA 92337

Reported 3 weeks ago

Carmelo Male Dog

LOST PawBoost ID: 73092432


Fontana, CA 92337

White Pomerania Male

View Pet

Lost Male Dog last seen Indian and ironwood, Moreno Valley, CA 92553

Reported 3 weeks ago

Louie Male Dog

LOST PawBoost ID: 73092398


Moreno Valley, CA 92553

Yorkie small/medium size long hair brown black

View Pet

Lost Female Dog last seen Acre Ln and 40th St, San Bernardino, CA 92405

Reported 3 weeks ago

Charlotte Female Dog

LOST PawBoost ID: 73092262


San Bernardino, CA 92405

12yr old Small white poodle

View Pet

Lost Female Dog last seen Near vallecito drive, Hacienda Heights, CA 91745

Reported 3 weeks ago

Rosey Female Dog

LOST PawBoost ID: 73091898


Hacienda Heights, CA 91745

View Pet

Lost Male Dog last seen Northam y geminis, Los Angeles County, CA 91744

Reported 1 month ago, updated 3 weeks ago

Kilo Duarte Male Dog

LOST PawBoost ID: 73025126


Los Angeles County, CA 91744

Un chihuahua color cafe chocolate ya no tiene dientes su lavio inferior acabado y ojitos blancos casi siego

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

Reported 1 month ago, updated 3 weeks ago

Nyx Male Dog

LOST PawBoost ID: 73003233


San Bernardino, CA 92404

Mixed breed and mixed colors

View Pet

Lost Female Dog last seen Almería and walnut, Fontana, CA 92336

Reported 3 weeks ago

Sue Female Dog

LOST PawBoost ID: 73090984


Fontana, CA 92336

Brown chihuahua

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Lost Male Dog last seen Church and terra vista, Rancho Cucamonga, CA 91730

Reported 3 weeks ago

Teddy Male Dog

LOST PawBoost ID: 73090940


Rancho Cucamonga, CA 91730

Black and brown pug

View Pet

Lost Male Dog last seen Meridian st, chino,CA, Chino, CA 91708

Reported 4 weeks ago, updated 3 weeks ago

Didi Male Dog

LOST PawBoost ID: 73052742


Chino, CA 91708

White Brown Shi Tzu

View Pet

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 – 2,268,969 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.