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Ontario, California
Lost pets
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140 listings

Missing pets in Ontario

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Lost pets Montclair, photo: Lost female dog, Montclair, California - purple harness
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Lost female dog, Montclair, Ca...
Montclair, California
She was wearing a purple harness. Last seen g...
Wed, 01.04.2026
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Lost pets La Puente, photo: Lost male cat, Helmsdale Avenue, La Puente - green eyes and skinny
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Lost male cat, Helmsdale Avenu...
Helmsdale Avenue, 830, La Puente
Jasper is white with stripped spots that are...
Fri, 27.03.2026
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Lost pets Pomona, photo: Lost cat, East Alvarado Street, Pomona - male, all black
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Lost cat, East Alvarado Street...
East Alvarado Street, 346, Pomona
All black neutered, scars on ears and top of...
Fri, 20.03.2026
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Lost pets Rialto, photo: Lost male cat, Sierra Lakes Parkway, Rialto - light orange tabby with two collars
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Lost male cat, Sierra Lakes Pa...
Sierra Lakes Parkway, 2325, Rialto
Light orange/sandy color tabby. He had on 2 c...
Fri, 13.03.2026
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Lost pets Los Angeles, photo: Lost female dog, Mission Boulevard, Riverside - beige with some white
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Lost female dog, Mission Boule...
Mission Boulevard, 6840, Riverside
Beige with some white mixed in wire hair chiw...
Fri, 13.03.2026
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Lost pets San Bernardino, photo: Lost Dog: Black with White Paws, San Bernardino
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Lost Dog: Black with White Paw...
Whipple Mountain Road, 260, San Bernardino
Black with 2 white paws
Sat, 28.02.2026
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Lost pets San Bernardino, photo: Lost male cat, West 26th Street, 1235, San Bernardino - orange with white markings
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Lost male cat, West 26th Stree...
West 26th Street, 1235, San Bernardino
He’s orange with white on his nose, forehead,...
Wed, 18.02.2026
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Lost pets Riverside, photo: Lost Dog: Gucci, Tan & White, Riverside
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Lost Dog: Gucci, Tan & White,...
Jackson Street, 4715, Riverside
Tan and white. His name is Gucci. He got out...
Sat, 14.02.2026
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Lost pets Montclair, photo: Help Find Our Lost Siamese Cat in Montclair!
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Help Find Our Lost Siamese Cat...
Pradera Avenue, 10425, Montclair
Red flame point Siamese Male Mainly white wit...
Wed, 04.02.2026
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Lost pets Riverside, photo: Lost Orange Cat on Kingsley Way
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Lost Orange Cat on Kingsley Wa...
Kingsley Way, 7387, Riverside
He is a large short hair orange cat short hai...
Mon, 19.01.2026
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Lost pets Fontana, photo: Lost Cat: Green Eyes, Black Heart Nose
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Lost Cat: Green Eyes, Black He...
Citrus Avenue, 8888, Fontana
She has green and yellow eyes with a black he...
Wed, 14.01.2026
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Lost pets Fontana, photo: Missing Dog: Baxter Last Seen in Fontana
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Missing Dog: Baxter Last Seen...
Briarwood Avenue, 9424, Fontana
No collar on. The wind blew our gate open and...
Fri, 09.01.2026
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Lost pets Montclair, photo: Lost Tiger-Striped Cat - $200 Reward!
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Lost Tiger-Striped Cat - $200...
Central Avenue, 9509, Montclair
Boss is a very handsome male a big boy tiger...
Sat, 03.01.2026
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Lost pets Riverside, photo: Lost Frenchie: Grey-Brown, Riverside
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Lost Frenchie: Grey-Brown, Riv...
Victoria Avenue, 4418, Riverside
Small male frenchie, greyish brown coat with...
Mon, 29.12.2025
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Lost pets California City, photo: Lost Dog in Riverside - Small Reward
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Lost Dog in Riverside - Small...
Riverside, California
Small reward if found & secured
Mon, 29.12.2025
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Lost pets San Bernardino, photo: Lost Gray Weimaraner, 9, West 21st St
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Lost Gray Weimaraner, 9, West...
West 21st Street, 698, San Bernardino
Has a lump on her left side, gray weimaraner...
Fri, 12.12.2025
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Lost pets Rialto, photo: Lost Merle Frenchie-Pug in Rialto
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Lost Merle Frenchie-Pug in Ria...
North Quince Avenue, 786, Rialto
Black, white and grey Merle. Frenchie and pug...
Wed, 03.12.2025
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Lost pets Azusa, photo: Help Find Delilah: Lost Miniature Cat
Success
Reunited
Lantana Way, Azusa
Delilah ran out of our garage door, has never...
Fri, 28.11.2025
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Lost pets Diamond Bar, photo: Lost Cat: White with Grey Stripes, Diamond Bar
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Lost Cat: White with Grey Stri...
Goldrush Drive, 23844, Diamond Bar
White with grey tiger stripes on feet and hea...
Fri, 28.11.2025
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Lost pets Rialto, photo: Lost: White & Brown Dog, One Eye, Rialto
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Lost: White & Brown Dog, One E...
North Clifford Avenue, 960, Rialto
White and brown one eye
Mon, 24.11.2025

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