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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 Ash Ave and Magnolia Ave, Fullerton, CA 92833

Reported 3 weeks ago

Paco Male Dog

LOST PawBoost ID: 73077166


Fullerton, CA 92833

Pit bull mix

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Lost Male Dog last seen Near n donneybrooke st, Orange, CA 92868

Reported 3 weeks ago

Toby Male Dog

LOST PawBoost ID: 73076855


Orange, CA 92868

black german shepard mix with copper brown,black and white pattern.

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Lost Male Dog last seen Groverdale and Lark Ellen, Covina, CA 91722

Reported 1 month ago, updated 3 weeks ago

Walter Male Dog

LOST PawBoost ID: 73009255


Covina, CA 91722

He is a small brown yorkie. He has a neurological disorder that causes him to lick the air.

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Lost Female Dog last seen Near west marshall blvd, San Bernardino, CA 92405

Reported 3 weeks ago, updated 3 weeks ago

Kirby Female Dog

LOST PawBoost ID: 73067505


San Bernardino, CA 92405

Frenchie

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Lost Female Dog last seen Graves Ave & Del Mar Blvd, Rosemead, CA 91770

Reported 10 months ago, updated 3 weeks ago

Boba Female Dog

LOST PawBoost ID: 72083460


Rosemead, CA 91770

Older German Shephard

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Lost Female Dog last seen Between Amar Rd and Aileron Ave, La Puente, CA, La Puente, CA 91790

Reported 3 weeks ago

Mini Female Dog

LOST PawBoost ID: 73076208


La Puente, CA 91790

An American Bully puppy, brown in color, with brown eyes; her front paws are different colors—the right paw is brown and the left is white (as shown in the photo). She responds to the name Mini and isn't wearing a collar because she was found inside the hse.

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Lost Unknown Dog last seen Bayberry and Peyton Drive, Chino Hills, Chino Hills, CA 91709

Reported 3 weeks ago

Unknown Unknown Dog

LOST PawBoost ID: 73076013


Chino Hills, CA 91709

Big, brown, pink collar tag friendly

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Lost Male Dog last seen S white ave ,phillist st, Pomona, CA 91766

Reported 3 months ago, updated 3 weeks ago

Pancho Male Dog

LOST PawBoost ID: 72749025


Pomona, CA 91766

Brown and white

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Lost Male Dog last seen Rimpau & 6th St, Corona, CA 92882

Reported 3 weeks ago

Charly Male Dog

LOST PawBoost ID: 73075653


Corona, CA 92882

Small Yorkie with a black collar

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Lost Male Dog last seen Muscoy, Muscoy, CA 92407

Reported 1 month ago, updated 3 weeks ago

Thor Male Dog

LOST PawBoost ID: 73011629


Muscoy, CA 92407

Weird ears

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Lost Male Dog last seen Owl tree Rd and Washington St., Riverside, CA 92504

Reported 3 weeks ago

Payton Male Dog

LOST PawBoost ID: 73075381


Riverside, CA 92504

German Shepherd and Australian Shepherd mix 65 pounds.

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Lost Male Dog last seen Grand and Badillo, Covina, CA 91722

Reported 3 weeks ago

Zack Brown Male Dog

LOST PawBoost ID: 73074972


Covina, CA 91722

White / Tan fluffy and small Chihuahua and Poodle Mixed

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Lost Male Dog last seen Badillo and Grand, Covina, CA 91724

Reported 3 weeks ago

Zach Brown Male Dog

LOST PawBoost ID: 73074921


Covina, CA 91724

Clean white/Tan Small dog named Zakk He’s a poodle and chihuahua Mixed

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Lost Female Dog last seen California Parkette on California Avenue, West Covina, CA 91790

Reported 1 month ago, updated 3 weeks ago

Petal Female Dog

LOST PawBoost ID: 73034794


West Covina, CA 91790

Black, brown, and white. Fairly small. Very very sweet and gentle

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Lost Female Dog last seen Baseline st, San Bernardino, CA 92405

Reported 3 weeks ago

Pebble Female Dog

LOST PawBoost ID: 73073630


San Bernardino, CA 92405

Black and tan has white on chest . French bulldog

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Lost Male Dog last seen Slauson ave Whittier Santa Fe springs area, West Whittier-Los Nietos, CA 90606

Reported 6 months ago, updated 3 weeks ago

Marble Male Dog

LOST PawBoost ID: 72457233


West Whittier-Los Nietos, CA 90606

Gray brown Frenchie

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Lost Male Dog last seen Deana penn mar ave, El Monte, CA 91731

Reported 2 months ago, updated 3 weeks ago

Ace Male Dog

LOST PawBoost ID: 72942962


El Monte, CA 91731

White

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Lost Female Dog last seen Esto ave, El Monte, CA 91731

Reported 3 months ago, updated 3 weeks ago

Ella Female Dog

LOST PawBoost ID: 72811646


El Monte, CA 91731

She has Wavy hair

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Lost Male Dog last seen E Rainview Ct, Anaheim, CA 92808

Reported 3 weeks ago

Chico Male Dog

LOST PawBoost ID: 73071326


Anaheim, CA 92808

Small black Chihuahua

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Lost Female Dog last seen Coney and E. Bellbrook st, Covina, CA 91722

Reported 1 month ago, updated 3 weeks ago

Luna Female Dog

LOST PawBoost ID: 72992390


Covina, CA 91722

Sand brown

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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 – 2,269,049 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.