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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.

881 lost dogs in your search

Lost Female Dog last seen Baranca, Covina, CA 91723

Reported 17 hours ago

Molly Female Dog

LOST PawBoost ID: 72960911


Covina, CA 91723

Chihuahua with a pink nose

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Lost Male Dog last seen Trail between devore and cajon, San Bernardino County, CA 92407

Reported 3 weeks ago, updated 17 hours ago

Rocky Male Dog

LOST PawBoost ID: 72884865


San Bernardino County, CA 92407

Black and white Siberian husky.

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Lost Male Dog last seen Baseline and citrus, Fontana, CA 92336

Reported 18 hours ago

Swayze Male Dog

LOST PawBoost ID: 72960836


Fontana, CA 92336

Maltipoo

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Lost Male Dog last seen Valencia and Highland , San Bernardino, CA 92404

Reported 3 months ago, updated 19 hours ago

Coco Male Dog

LOST PawBoost ID: 72604768


San Bernardino, CA 92404

White/light cream color, blue/Grey eyes

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Lost Male Dog last seen Near elwood ave, Fontana, CA 92336

Reported 3 days ago, updated 21 hours ago

Swayze Male Dog

LOST PawBoost ID: 72951621


Fontana, CA 92336

hes white and skinny

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Lost Female Dog last seen Cypress and Badillo, Covina, CA 91724

Reported 6 months ago, updated 21 hours ago

Gracie Female Dog

LOST PawBoost ID: 72288988


Covina, CA 91724

Tan Maltese mix terrier Friendly but a little skittish.

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Lost Male Dog last seen Near cranmer dr walnut ca 91789, Walnut, CA 91789

Reported 21 hours ago

Dodgie Male Dog

LOST PawBoost ID: 72960529


Walnut, CA 91789

2 small fluffy dogs cream tan ears brown nose one is slightly shaggier fave

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Lost Female Dog last seen Garey and county, Pomona, CA 91766

Reported 3 weeks ago, updated 23 hours ago

Daisy Female Dog

LOST PawBoost ID: 72879103


Pomona, CA 91766

Grey, white and scruffy

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Lost Female Dog last seen Boardwalk Drive & Challen, Riverside, CA 92503

Reported 3 months ago, updated 23 hours ago

Happy Female Dog

LOST PawBoost ID: 72620081


Riverside, CA 92503

Tan with white on face and paws wearing a lavender harness

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Lost Male Dog last seen Last seen running near the 7/11 cross street Maxson, El Monte, CA 91732

Reported 11 months ago, updated 24 hours ago

Max Male Dog

LOST PawBoost ID: 71772881


El Monte, CA 91732

White fur, tan/beige ears. He is Neutered and microchipped. He has long legs and can be fairly shy. Contact: 559-7086101

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

Reported 1 day ago

Jiggly Male Dog

LOST PawBoost ID: 72959837


Fontana, CA 92335

White & Brown Maltipoo

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Lost Female Dog last seen Cypress st, Fontana, CA 92335

Reported 1 day ago

Panthera Female Dog

LOST PawBoost ID: 72959822


Fontana, CA 92335

Black line from nose to forehead

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Lost Male Dog last seen Palm street, Baldwin Park, CA 91706

Reported 2 months ago, updated 1 day ago

Leo Male Dog

LOST PawBoost ID: 72773724


Baldwin Park, CA 91706

White with tan spots

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Lost Female Dog last seen N Mount Vernon Ave Colton CA, Colton, CA 92324

Reported 1 day ago

Jude Female Dog

LOST PawBoost ID: 72959608


Colton, CA 92324

She's a tan chiweenie and has growing hair at the back of her body

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Lost Female Dog last seen Fourth and Howard , Corona, CA 92879

Reported 3 days ago, updated 1 day ago

Ruby Female Dog

LOST PawBoost ID: 72950678


Corona, CA 92879

Black chihuahua with white markings and legs

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Lost Male Dog last seen Sierra and Santa Ana, Fontana, CA 92337

Reported 3 days ago, updated 1 day ago

Pauly Male Dog

LOST PawBoost ID: 72950522


Fontana, CA 92337

Brown Chihuahua

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Lost Female Dog last seen Irwindale park, Irwindale, CA 91706

Reported 2 weeks ago, updated 1 day ago

Bella Female Dog

LOST PawBoost ID: 72902323


Irwindale, CA 91706

Light brown older chihuahua.

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Lost Female Dog last seen Pathway Church, Riverside, CA 92503

Reported 10 months ago, updated 1 day ago

Sydney Female Dog

LOST PawBoost ID: 71892780


Riverside, CA 92503

Black tan white long fluffy tail long legs

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Lost Male Dog last seen 42nd st and Riverview, Jurupa Valley, CA 92509

Reported 1 day ago

Chief Male Dog

LOST PawBoost ID: 72958616


Jurupa Valley, CA 92509

Dark brown was wearing a black collar

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Lost Male Dog last seen Upland Animal Shelter, Upland, CA 91785

Reported 1 day ago

Olaf Male Dog

LOST PawBoost ID: 72958238


Upland, CA 91785

zu, white with beige color all around, male, 9 years old, big underbite with stains

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Lost Dog Data for Ontario, CA

There are 881 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 – 2,228,787 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.