PawBoost ID or Name

Status

Location

City, Zip, or Address
Distance

Animal

Type

Sex

Sort

Within Past

Lost Cats Database for Ontario, CA

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

884 lost cats in your search

Lost Male Cat last seen Malvern/ burning tree, Fullerton, CA 92833

Reported 2 months ago, updated 4 days ago

Noah Male Cat

LOST PawBoost ID: 73233761


Fullerton, CA 92833

Recently shaved..white Himalayan

View Pet

Lost Male Cat last seen Howard and central, Montclair, CA 91763

Reported 4 days ago

Hazel Male Cat

LOST PawBoost ID: 73408556


Montclair, CA 91763

Black cat with 4 white paws

View Pet

Lost Male Cat last seen Arrowview Animal Clinic in the alley north of Highland Ave, San Bernardino, CA 92404

Reported 2 years ago, updated 4 days ago

Tinker Male Cat

LOST PawBoost ID: 71083788


San Bernardino, CA 92404

Just got neutered 9 days ago. Shaved and tattooed. He's an outdoors cat could be friendly but coucious. Lost at vets near Perris Hill Park in alley way.

View Pet

Lost Male Cat last seen Nixon Library, Yorba Linda, CA 92886

Reported 2 weeks ago, updated 4 days ago

Simba & Nala Male Cat

LOST PawBoost ID: 73355887


Yorba Linda, CA 92886

Orange and calico cats, siblings, last seen last night at home in Yorba Linda

View Pet

Lost Female Cat last seen Near, Montclair, CA 91763

Reported 2 months ago, updated 4 days ago

Chanel Female Cat

LOST PawBoost ID: 73174293


Montclair, CA 91763

Brown collar with pink flower

View Pet

Lost Female Cat last seen W Merrill Ave & S Spruce Ave, Rialto, CA 92376

Reported 2 months ago, updated 5 days ago

Dolly Female Cat

LOST PawBoost ID: 73161656


Rialto, CA 92376

Siamese mix with cookies n cream coat,white paws, blue eyes

View Pet

Lost Female Cat last seen Puddingstone Drive, San Dimas, CA 91773

Reported 4 weeks ago, updated 5 days ago

Bigglesworth Female Cat

LOST PawBoost ID: 73315994


San Dimas, CA 91773

Large white cat with black tail and black face marking. Around 14-18 lbs. very friendly, always wants to eat and play. REWARD IF FOUND

View Pet

Lost Male Cat last seen Colima and Fullerton, Rowland Heights, CA 91748

Reported 7 months ago, updated 5 days ago

Binx Male Cat

LOST PawBoost ID: 72621901


Rowland Heights, CA 91748

Right ear clipped. He has fur growing back in on his left cheek following a recent injury that is healing (not pictured).

View Pet

Lost Female Cat last seen Center st & Iowa, Riverside, CA 92507

Reported 1 year ago, updated 5 days ago

Bella Female Cat

LOST PawBoost ID: 71700705


Riverside, CA 92507

All black with a 2inch tail. Her tag was pink, Heart shaped

View Pet

Lost Male Cat last seen Pomona Fairplex, La Verne, CA 91750

Reported 2 years ago, updated 5 days ago

Tangy Male Cat

LOST PawBoost ID: 71173544


La Verne, CA 91750

2 years old, very sweet but possibly very scared. Is microchipped, got out of the hse when I was taking my dogs out

View Pet

Lost Female Cat last seen In between Vermont Ave and South St near Anaheim Blvd, Anaheim, CA 92805

Reported 6 months ago, updated 5 days ago

Indi Female Cat

LOST PawBoost ID: 72756308


Anaheim, CA 92805

Grey tabby, a little bit more black colored fur on her back and tail area.

View Pet

Lost Male Cat last seen San Rafael Arcangel Ln. near Santa Inez, Riverside, CA 92508

Reported 3 months ago, updated 5 days ago

Newt Male Cat

LOST PawBoost ID: 73052520


Riverside, CA 92508

Dark Grey with White Chest and Paws. White starts under his chin, stops briefly, causing a grey bow like pattern and then white begins again. I miss him terribly.

View Pet

Lost Male Cat last seen Gramercy St, Pomona, CA 91767

Reported 3 months ago, updated 5 days ago

Yuan Yuan Male Cat

LOST PawBoost ID: 73038195


Pomona, CA 91767

Yuan Yuan is male tuxedo, about 5 years old. Friendly and comfortable with people.

View Pet

Lost Female Cat last seen First St/ B Street by Peppertree Park Tustin CA, Monrovia, CA 91016

Reported 8 months ago, updated 5 days ago

Luna Female Cat

LOST PawBoost ID: 72526934


Monrovia, CA 91016

6 years old Female Black and white tabby with crescent moon on her back. She's wearing a pink collar

View Pet

Lost Female Cat last seen 24hr fitness renaissance parkway and Ayala Rialto ca, San Bernardino, CA 92408

Reported 6 days ago, updated 5 days ago

Cheechee Female Cat

LOST PawBoost ID: 73401068


San Bernardino, CA 92408

Short dense fur stripes and peach half tail 6 rings on it and a stripe going the length that breaks and starts again green eyes vocal slight vertical strip on her chin from lower lip break continues under her lower mandible. She says NEER! NEER silvery I trimmed her coat so her stripes aren’t all in the pick she looks silver and white her under coat. But has tortioshell patches and stripes when it grows back on top. Very pretty face. Chubby. Likes to hunt flying stuff. Loves tuna. Need to be returned to me. With her sister monkey. The Rialto cops stole both my cats that day.

View Pet

Lost Female Cat last seen Arden way, El Monte, CA 91731

Reported 4 weeks ago, updated 5 days ago

Stripes Female Cat

LOST PawBoost ID: 73322658


El Monte, CA 91731

Light grey with stripes

View Pet

Lost Male Cat last seen Old Castle Rd and Dune, Fontana, CA 92337

Reported 4 years ago, updated 5 days ago

Mochi Male Cat

LOST PawBoost ID: 68057257


Fontana, CA 92337

Orange cat wearing a bell collar, 2 years old

View Pet

Lost Male Cat last seen Near w diamond st anaheim 92802, Anaheim, CA 92801

Reported 5 days ago

Bleu/ Blue Male Cat

LOST PawBoost ID: 73405523


Anaheim, CA 92801

Gray and white with greenish eyes he knows his name when you call him blue.

View Pet

Lost Male Cat last seen Sierra Madre ave/ vermont, Glendora, CA 91741

Reported 7 months ago, updated 5 days ago

Ziza Male Cat

LOST PawBoost ID: 72647719


Glendora, CA 91741

He is very dark brow almost black with a white -ish under coat. Big greenish gold eyes chubby cheeks. He still has his MAN parts.

View Pet

Lost Male Cat last seen Clara Barton Elementary, Eastvale, CA 92880

Reported 5 days ago

Harley Male Cat

LOST PawBoost ID: 73405401


Eastvale, CA 92880

Black & white

View Pet

Lost Cat Data for Ontario, CA

There are 884 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 – 2,315,248 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.