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Lost Cats Database for Ontario, CA

Search lost and found cats, as well as other pets, in the Ontario area with PawBoost.

839 lost cats in your search

Lost Male Cat last seen Bedford lane and Peyton Ave, Chino Hills, CA 91709

Reported 2 weeks ago, updated 2 days ago

Tito Male Cat

LOST PawBoost ID: 73568704


Chino Hills, CA 91709

Tuxedo cat

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Lost Male Cat last seen Lambert and State College, Brea, CA 92821

Reported 3 months ago, updated 2 days ago

Mr. Kitty Male Cat

LOST PawBoost ID: 73277191


Brea, CA 92821

Orange Tabby (neutered)

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Lost Male Cat last seen Elder and Perris, Moreno Valley, CA 92555

Reported 2 months ago, updated 2 days ago

Zorrobandit Male Cat

LOST PawBoost ID: 73423380


Moreno Valley, CA 92555

Snowshoe Siamese

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Lost Male Cat last seen Near Pheasant Knoll Rd, Corona, CA 92880

Reported 2 days ago

Fufu Male Cat

LOST PawBoost ID: 73610965


Corona, CA 92880

His front paws are always dark

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Lost Male Cat last seen The highlands at grand terrace, Grand Terrace, CA 92313

Reported 4 weeks ago, updated 2 days ago

Mushu Male Cat

LOST PawBoost ID: 73510099


Grand Terrace, CA 92313

Orange fluffy cat with light blue collar

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Lost Female Cat last seen Mabury Ranch, Bryce Ave and Zion, Orange, CA 92867

Reported 3 months ago, updated 2 days ago

Daisy Female Cat

LOST PawBoost ID: 73271441


Orange, CA 92867

Black cat

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Lost Female Cat last seen Sunset and Foothill, Monrovia, CA 91016

Reported 4 months ago, updated 2 days ago

Beep Female Cat

LOST PawBoost ID: 73130047


Monrovia, CA 91016

Female tuxedo cat with heart-shaped white patch on mouth, white chest, and four white feet. Approximately 9 lbs. Reward if found!

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Lost Female Cat last seen State college blvd, Anaheim, CA 92806

Reported 2 years ago, updated 2 days ago

Aerith Female Cat

LOST PawBoost ID: 71378181


Anaheim, CA 92806

White and orange cream kitty, around two years old now. Green eyes

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Lost Male Cat last seen Mission and Hamilton, Pomona, CA 91766

Reported 5 months ago, updated 2 days ago

Luna Male Cat

LOST PawBoost ID: 72960310


Pomona, CA 91766

White cat golden brown stripes all over his face, he has blue eyes and golden brown raccoon striped tail and he is not nurtured

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Lost Female Cat last seen 19/Northstar truck stop 14416 slover & cherry av Fontana CA 92337, Fontana, CA 92337

Reported 1 year ago, updated 2 days ago

Nala Female Cat

LOST PawBoost ID: 72025287


Fontana, CA 92337

Black/white with upside down heart on nose . Tail near tip is broken and bent down. Last seen with blue collar, blue chip tag and bell. Call asap if caught or seen (20'8) 29'0-716'4

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Lost Male Cat last seen Blakeman, Rowland Heights, CA 91748

Reported 2 weeks ago, updated 2 days ago

Bugsy Male Cat

LOST PawBoost ID: 73570656


Rowland Heights, CA 91748

White and gray with the white cotton ball tip tail very pretty olive green eyes

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Lost Male Cat last seen Whistler and De Berry Street, Grand Terrace, CA 92313

Reported 10 months ago, updated 2 days ago

Lucky Male Cat

LOST PawBoost ID: 72493882


Grand Terrace, CA 92313

White and black. Blue eyes

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Lost Male Cat last seen Fairmont & Yorba Linda blvd, Yorba Linda, CA 92886

Reported 2 days ago

Milo Male Cat

LOST PawBoost ID: 73609895


Yorba Linda, CA 92886

Gray cat with some white streaks. White Streaks form a circle on his side

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Lost Female Cat last seen Waters Ave, Pomona, CA 91766

Reported 4 months ago, updated 2 days ago

Ember Female Cat

LOST PawBoost ID: 73082842


Pomona, CA 91766

Tortoiseshell cat with fluffy fur and kind of small for a cat; weighs around 9 pounds and is almost 2 years old.

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Lost Male Cat last seen Corner of Lime and Primrose, Monrovia, CA 91016

Reported 2 years ago, updated 3 days ago

Ringo Male Cat

LOST PawBoost ID: 71104478


Monrovia, CA 91016

Black and white tuxedo with white around his mouth/nose, stomach and paws.

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Lost Male Cat last seen Canary Lane & Kellogg Ave, Corona, CA 92879

Reported 2 months ago, updated 3 days ago

Buster Male Cat

LOST PawBoost ID: 73421700


Corona, CA 92879

Unaltered 6 mo old male kitten. Very friendly and loving and missed SO very much!!

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Lost Male Cat last seen Near Palomino Dr, Chino Hills, CA 91709

Reported 2 months ago, updated 3 days ago

Mia Male Cat

LOST PawBoost ID: 73340540


Chino Hills, CA 91709

He was a gray kitten with a white neck and four white paws.

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Lost Female Cat last seen Collingswood Drive, Pomona, CA 91767

Reported 2 months ago, updated 3 days ago

Korra Female Cat

LOST PawBoost ID: 73315658


Pomona, CA 91767

Grayish cat,with brown and white spots/patterns

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Lost Male Cat last seen 48th st and troth, Jurupa Valley, CA 91752

Reported 1 month ago, updated 3 days ago

Kenji Male Cat

LOST PawBoost ID: 73489158


Jurupa Valley, CA 91752

Has a collar with our info on it and his name,

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Lost Female Cat last seen Arrow and Silverwood, Upland, CA 91786

Reported 3 days ago

Luna Female Cat

LOST PawBoost ID: 73608896


Upland, CA 91786

1 year old small gray with black stripes slight orange belly

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Lost Cat Data for Ontario, CA

There are 839 lost cats in Ontario, CA.

Find Local Cat Shelters in Ontario, CA

PawBoost has communities of cat-lovers across the country and beyond that help find missing cats, and that means partnerships with cat 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 Cat Sooner with PawBoost

When you have a missing cat, it can be difficult to know what to do in the moment.

How do I find my cat? Do I have to visit the cat 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 cat owners find their furry loved ones – 2,350,928 pets reunited and counting!

Find your lost cat faster with PawBoost.

Report Lost Cat

Frequently Asked Questions

I lost my cat. What should I do?

Take advantage of online platforms – they help you get the word out, quickly and easily. You can report your lost cat 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 cat to our lost & found, and make a lost cat flyer – all for free.

Other sites that help you raise local awareness for your lost cat 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 cat'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 cat for more actionable tips.

Where do I report a lost cat in Ontario, CA?

If you lost a cat, we would like to help. You can report a lost cat to PawBoost for free to help find your cat 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 cat?

You don't have to pay to find your lost pet with PawBoost. PawBoost's free cat finder services have helped millions of people reunite with their lost cats.

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.