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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.

1086 lost dogs in your search

Lost Male Dog last seen San dimas, San Dimas, CA 91773

Reported 2 months ago, updated 1 month ago

Goldie Male Dog

LOST PawBoost ID: 72905017


San Dimas, CA 91773

Pitbull and canine blue eyes and brown and white color fur and he is sweet

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Lost Male Dog last seen Santa Lucia St, Fontana, CA 92336

Reported 1 month ago

lulu Male Dog

LOST PawBoost ID: 73017172


Fontana, CA 92336

Border collie 10-months well groomed

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Lost Female Dog last seen fontana, Fontana, CA 92335

Reported 1 month ago

Molly Female Dog

LOST PawBoost ID: 73016498


Fontana, CA 92335

grey

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Lost Male Dog last seen Agate st Jurupa Valley, Riverside, CA 92509

Reported 1 month ago

Chapo Male Dog

LOST PawBoost ID: 73015749


Riverside, CA 92509

French Bulldog

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Lost Male Dog last seen Peacock Lane, Riverside, Riverside, CA 92505

Reported 1 month ago

Dodo Male Dog

LOST PawBoost ID: 73015724


Riverside, CA 92505

White haired, scruffy small dog

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Lost Female Dog last seen Near Indiana, past the Tyler Mall and 91 Freeway, Riverside, CA 92503

Reported 1 month ago

Winter Female Dog

LOST PawBoost ID: 73015206


Riverside, CA 92503

Small teacup terrier named Winter. She is small and a senior dog and has a high pitched bark. She can be shy and will hide. She should have a pink collar with address and phone number on it. She was last seen in the fenced backyard this morning.

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Lost Male Dog last seen Near cross walks, Whittier, CA 90602

Reported 2 months ago, updated 1 month ago

Chester Male Dog

LOST PawBoost ID: 72887026


Whittier, CA 90602

He’s an old dog limps don’t come near him he gets scared and will bite he a lot have fur of his back and it looks red like a rash

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Lost Male Dog last seen Hacienda/gale, Hacienda Heights, CA 91745

Reported 1 month ago, updated 1 month ago

Jaxon Male Dog

LOST PawBoost ID: 72998942


Hacienda Heights, CA 91745

English bulldog with pointy ears has a red collar

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Lost Male Dog last seen Sonora Pl Riverside 92504, Riverside, CA 92504

Reported 3 months ago, updated 1 month ago

Napo Male Dog

LOST PawBoost ID: 72813467


Riverside, CA 92504

He’s a chihuahua terrior mix he’s white and brown

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Lost Male Dog last seen Bunker Hill Dr, San Bernardino, CA 92410

Reported 4 months ago, updated 1 month ago

Monkey Male Dog

LOST PawBoost ID: 72744106


San Bernardino, CA 92410

Brown Chihuahua

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Lost Female Dog last seen Duarte high school, Duarte, CA 91010

Reported 3 months ago, updated 1 month ago

Sophie Female Dog

LOST PawBoost ID: 72805052


Duarte, CA 91010

Pomeranian

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Lost Male Dog last seen Miller Ave and Almeria Ave, Fontana, CA 92336

Reported 3 months ago, updated 1 month ago

Miko Male Dog

LOST PawBoost ID: 72851301


Fontana, CA 92336

Brown and black and grey, under 5 lbs.

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Lost Male Dog last seen Barrydale and Francisquito, La Puente, CA 91746

Reported 1 month ago

Pirate Male Dog

LOST PawBoost ID: 73012009


La Puente, CA 91746

Boxer dog

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Lost Male Dog last seen Grand and Dorset in pomona, Pomona, CA 91762

Reported 1 month ago, updated 1 month ago

Cookie Male Dog

LOST PawBoost ID: 73003503


Pomona, CA 91762

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Lost Female Dog last seen Near Franzen St Santa Ana, Santa Ana, CA 92705

Reported 2 months ago, updated 1 month ago

Cindy Female Dog

LOST PawBoost ID: 72857847


Santa Ana, CA 92705

Skinny white short hair bichon frisé

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Lost Male Dog last seen Near Golden PradosDrive, Diamond Bar, CA 91765

Reported 2 months ago, updated 1 month ago

Junior Male Dog

LOST PawBoost ID: 72925101


Diamond Bar, CA 91765

Rat Terrier some think Chihuahua

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Lost Male Dog last seen lincon and gilbert, Anaheim, CA 92801

Reported 1 month ago

Milo Male Dog

LOST PawBoost ID: 73010312


Anaheim, CA 92801

He had a white patch on his chest and he has greenish eyes and he is very friendly he has a short but not to short and he is 1 years old and he wasn’t wearing any clothes on nor a collar.

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Lost Male Dog last seen Randall Ave and Cactus Ave, Rialto, CA 92376

Reported 1 month ago

Cheeto Male Dog

LOST PawBoost ID: 73010005


Rialto, CA 92376

Black and White Male Pup

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Lost Male Dog last seen Near the Jack in the Box off Green River, Corona, CA 92878

Reported 1 month ago

Scout Male Dog

LOST PawBoost ID: 73009562


Corona, CA 92878

Anita mix with injured ears, light tan most of body and dark snout and ears

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Lost Male Dog last seen Near Disneyland W Ball Rd & S Harbor Blvd. Anaheim, Ca., Anaheim, CA 92805

Reported 3 months ago, updated 1 month ago

Zozo Male Dog

LOST PawBoost ID: 72811946


Anaheim, CA 92805

Pomeranian light beige little tan around his face, big smile when happy

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Lost Dog Data for Ontario, CA

There are 1086 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 – 2,269,198 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.