96 listings

Missing dogs in Ontario

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Missing dog Moreno Valley, photo: Lost dog, West Arrow Highway, 270, Upland, Moreno Valley — male, white, named Toro
Lost
Lost dog, West Arrow Highway,...
West Arrow Highway, 270, Upland
White dog named Toro. Last wearing yellow coc...
Sat, 12.09.2026
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Missing dog Pomona, photo: Lost dog, Vejar Street, 1622, Pomona — female with a golden-brown coat
Lost
Lost dog, Vejar Street, 1622,...
Vejar Street, 1622, Pomona
Golden brown with white idk she was here at h...
Sat, 05.09.2026
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Missing dog San Bernardino, photo: Lost dog, Victoria Street, San Bernardino — female with polka dots on all four feet
Lost
Lost dog, Victoria Street, San...
Victoria Street, San Bernardino
She is piebald dapple black white brown with...
Sat, 05.09.2026
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Missing dog Anaheim, photo: Lost male dog, Jurupa Valley, California, Anaheim
Lost
Lost male dog, Jurupa Valley,...
Jurupa Valley, California
Sat, 29.08.2026
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Missing dog Riverside, photo: Lost dog, male, Felspar Street, 5745, Jurupa Valley, Riverside
Lost
Lost dog, male, Felspar Street...
Felspar Street, 5745, Jurupa Valley
Not sure
Listing is boosting
Sat, 29.08.2026
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Missing dog Azusa, photo: Lost Dog, Felspar Street, Jurupa Valley, Azusa — Male with Green Eyes
Lost
Lost Dog, Felspar Street, Juru...
Felspar Street, Jurupa Valley
Green eyes, Scab on his belly
Sat, 29.08.2026
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Missing dog Moreno Valley, photo: Lost dog, Cottonwood Avenue, 22055, Moreno Valley - female
Lost
Lost dog, Cottonwood Avenue, 2...
Cottonwood Avenue, 22055, Moreno Valley
Missing two pugs, male and female. They didn'...
Sat, 29.08.2026
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Missing dog West Covina, photo: Missing dog Female, West Covina (usl545098)
Lost
Missing dog Female, West Covin...
Lochmere Avenue, 571, La Puente
Super friendly Very old but looks younger Has...
Sat, 29.08.2026
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Missing dog Ontario, photo: Lost dog, Moosedeer Drive, 2524, Ontario - tri-color wire Fox Terrier, 13.5 years old
Lost
Lost dog, Moosedeer Drive, 252...
Moosedeer Drive, 2524, Ontario
Tri color wire Fox terrier, very friendly and...
Sun, 26.07.2026
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Missing dog Oceanside, photo: Lost dog, Balfore Street, 2908, Riverside, Oceanside
Lost
Lost dog, Balfore Street, 2908...
Balfore Street, 2908, Riverside
Rottweiler is very friendly dachshund is very...
Sun, 26.07.2026
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Missing dog Riverside, photo: Lost dog, male, Helena Avenue, 8214, Riverside — black and tan terrier mix with big expressive eyebrows
Lost
Lost dog, male, Helena Avenue,...
Helena Avenue, 8214, Riverside
Lincoln went missing the evening of July 1st....
Sat, 04.07.2026
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Missing dog Chino, photo: Lost dog, Phillips Boulevard, 5325, Chino - senior male with one eye
Lost
Lost dog, Phillips Boulevard,...
Phillips Boulevard, 5325, Chino
Petey has 1 eye only. He has white/cream colo...
Wed, 24.06.2026
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Missing dog Anaheim, photo: Lost dog, Laurelwood Avenue, 120, Placentia, Anaheim - black French bulldog pug mix, grey flea collar
Success
Reunited
Laurelwood Avenue, 120, Placentia
Black French bulldog pug mix extremely friend...
Listing is boosting
Tue, 23.06.2026
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Missing dog Ontario, photo: Lost dog, East Sanderling Street, 570, Ontario - male, black and white, small mixed breed
Lost
Lost dog, East Sanderling Stre...
East Sanderling Street, 570, Ontario
Scotty is Black and White, small mixed breed...
Mon, 01.06.2026
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Missing dog Brea, photo: Missing dog Male, Brea (usl538946)
Lost
Missing dog Male, Brea (usl538...
South Poplar Avenue, 293, Brea
Short beige Labrador, floppy ears, no collar...
Sat, 30.05.2026
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Missing dog Diamond Bar, photo: Lost dog, Diamond Bar, California - male, parti yorkie, very friendly
Lost
Lost dog, Diamond Bar, Califor...
Diamond Bar, California
He’s a parti yorkie with a black, white and b...
Mon, 25.05.2026
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Missing dog Upland, photo: Lost dog, East Buffington Street, 119, Upland - skittish, short nub tail
Lost
Lost dog, East Buffington Stre...
East Buffington Street, 119, Upland
She is black, white, and brown, she has a sho...
Sat, 23.05.2026
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Missing dog Los Angeles, photo: Lost dog, East 4th Street, 551, Los Angeles - male Australian Shepherd
Lost
Lost dog, East 4th Street, 551...
East 4th Street, 551, Ontario
He is a Australian Shepherd he is black and h...
Sat, 23.05.2026
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Missing dog Irwindale, photo: Lost dog, North Irwindale Avenue, 5124, Irwindale - female, 19 years old
Lost
Lost dog, North Irwindale Aven...
North Irwindale Avenue, 5124, Irwindale
She 19 years old she has a lump on her belly...
Mon, 18.05.2026
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Missing dog Norco, photo: Lost dog, male, Pacific Avenue, 2135, Norco - senior white poodle with a thin tail
Lost
Lost dog, male, Pacific Avenue...
Pacific Avenue, 2135, Norco
Is a senior poodle (14years old) with white f...
Sun, 17.05.2026

Every year, thousands of dogs go missing, and Ontario, California, is no exception. The heartache of losing a beloved pet can be overwhelming. It's estimated that in our city alone, a significant number of dogs are reported lost each year. Understanding the proper steps to take if your dog goes missing can make all the difference in reuniting with your furry friend.


What to do if your dog is lost in Ontario state of California

If you find yourself in the unfortunate situation of losing your dog in Ontario, here are crucial steps you should take:

  • Start searching your neighborhood immediately. Dogs often don't stray too far from home.
  • Call out your dog's name and listen for any barking or movement.
  • Check with your neighbors and ask them to keep an eye out.
  • Visit your local animal shelter and report your lost dog.
  • Post flyers in your area with a clear photo and description of your dog.

Additionally, use social media platforms to spread the word. There are local groups dedicated to lost and found pets where you can share your situation. Networking with other pet owners can dramatically increase your chances of finding your lost dog.


How to write a missing dog ad in Ontario state of California

When creating a missing dog ad, it’s essential to convey the right information effectively. Here’s how you can make your ad stand out:

  • Include a recent photo of your dog that clearly shows its features.
  • Write a concise description including the breed, age, color, and any distinctive markings.
  • State where and when your dog was last seen.
  • Provide your contact information, ensuring it’s easy for people to reach you.
  • Consider offering a reward to encourage more people to help in your search.

Remember, the quicker you act and spread the word, the higher the chances of finding your dog. Keeping calm and organized during this stressful time will help those assisting in your search to remain focused and effective.