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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.

953 lost dogs in your search

Lost Male Dog last seen Wilson St and Myrtle, Pomona, CA 91768

Reported 17 hours ago

Taki Male Dog

LOST PawBoost ID: 72961785


Pomona, CA 91768

Light tan, right ear bends forward, anxious but friendly, no collar

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Lost Female Dog last seen Garner and spruce , San Bernardino, CA 92411

Reported 1 month ago, updated 17 hours ago

Molly Female Dog

LOST PawBoost ID: 72844144


San Bernardino, CA 92411

White jack Russell typical markings brown spot over right eye and a brown spot on her back near her tail

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Lost Female Dog last seen Avenida el Cid and Paseo de Las Palomas, Yorba Linda, CA 92887

Reported 4 years ago, updated 18 hours ago

Chloe Female Dog

LOST PawBoost ID: 67953485


Yorba Linda, CA 92887

Yorkie Female 3lbs 4 years old tan and gray Body very thin body extra long legs, very small. Went missing 3/31/2022 from Yorba Linda East Lake by tennis ct. WAS POSSIBLY seen being walked on Orangethorpe and Kramer by 7 Eleven October 2023. If you found and you have her please return. $3000 reward chip50426

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Lost Male Dog last seen S Euclid Ave. & W Holt Blvd., Ontario, CA 91762

Reported 4 weeks ago, updated 18 hours ago

Jerry Male Dog

LOST PawBoost ID: 72865277


Ontario, CA 91762

Brown/reddish MinPin/Terrier mix, 6-8 lbs

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Lost Female Dog last seen Central ave. Entre riverside dr y chino ave , Chino, CA 91710

Reported 3 days ago, updated 19 hours ago

Minnie Female Dog

LOST PawBoost ID: 72951541


Chino, CA 91710

Chihuahua black

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Lost Female Dog last seen 19th and carnelian , Rancho Cucamonga, CA 91701

Reported 1 week ago, updated 20 hours ago

Paige Female Dog

LOST PawBoost ID: 72923206


Rancho Cucamonga, CA 91701

Black Chihuahua

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Lost Male Dog last seen Tasty Choice, La Puente, CA 91744

Reported 3 weeks ago, updated 21 hours ago

Marlow Male Dog

LOST PawBoost ID: 72875097


La Puente, CA 91744

Light brown, medium size, very shy.

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Lost Male Dog last seen Nature center fontana near cypress , Fontana, CA 92337

Reported 21 hours ago

Louie Male Dog

LOST PawBoost ID: 72961160


Fontana, CA 92337

Dark brown with caramel eyes, small chiweenie and anxious

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Lost Male Dog last seen Twogood lane, Riverside, CA 92501

Reported 5 months ago, updated 23 hours ago

Kittle Male Dog

LOST PawBoost ID: 72413618


Riverside, CA 92501

Pug chihuahua mix last seen wearing red/black 49er sweater with a blue Dodgers collar

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Lost Female Dog last seen Baranca, Covina, CA 91723

Reported 1 day 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 1 day 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 1 day ago

Swayze Male Dog

LOST PawBoost ID: 72960836


Fontana, CA 92336

Maltipoo

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Lost Female Dog last seen Off of Chapman and Euclid , Garden Grove, CA 92840

Reported 1 day ago

Labubu Female Dog

LOST PawBoost ID: 72960814


Garden Grove, CA 92840

Small shy white dog with one eye

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

Reported 3 months ago, updated 1 day 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 1 day 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 1 day 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 1 day 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 1 day 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 1 day 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 1 day 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 Dog Data for Ontario, CA

There are 953 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 – 2,229,062 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.