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If you lost a dog, check list found dogs
Mastic, New York
Lost dogs
57 listings

Missing dogs in Mastic

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Missing dog Shirley, photo: Lost Boston Terrier: Mia or Colu, Shirley
Lost Boston Terrier: Mia or Co...
Small brown and white female Boston terrier c...
Tue, 06.01.2026
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Missing dog East Shoreham, photo: Lost White Shiba Inu: Moro in East Shoreham
Lost White Shiba Inu: Moro in...
White shibu inu named Moro
Thu, 01.01.2026
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Missing dog Shirley, photo: Lost Tan/White Dog in Shirley - Help!
Lost Tan/White Dog in Shirley...
Tan/white color. She lives on Allanwood Dr in...
Thu, 01.01.2026
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Missing dog Port Jefferson Station, photo: Lost Pit Bull: Brown & White in Port Jeff
Lost Pit Bull: Brown & White i...
Short Brown and white pit bull
Sat, 20.12.2025
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Missing dog Stony Brook, photo: Lost Mini Dachshund - Stony Brook Area
Lost Mini Dachshund - Stony Br...
3 year old brown long haired mini dachschund....
Tue, 16.12.2025
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Missing dog , photo: Lost Dog: Black/Brown, Green Collar
Lost Dog: Black/Brown, Green C...
Green collar Black and brown Has an ear infec...
Fri, 28.11.2025
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Missing dog Holtsville, photo: Help Find Charlie: Lost BichonPoodle Mix
Help Find Charlie: Lost Bichon...
Charlie is a little white BichonPoodle mix… h...
Mon, 24.11.2025
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Missing dog Wading River, photo: Lost Dog in Wading River: Help Needed!
Lost Dog in Wading River: Help...
Hi everyone. Last night 11/22/2025 our pup go...
Sat, 22.11.2025
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Missing dog Port Jefferson Station, photo: Lost Mini Pinscher: Black/Brown, N. Country Rd
Lost Mini Pinscher: Black/Brow...
Mini pincier small black and brown pointy ear...
Fri, 31.10.2025
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Missing dog Farmingville, photo: Lost Wheaten Terrier: Blue Collar, Farmingville
Lost Wheaten Terrier: Blue Col...
Wheaten terrier, should have a blue collar on...
Wed, 22.10.2025
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Missing dog Mastic Beach, photo: Lost Frenchie: Black & Tan on Madison St
Lost Frenchie: Black & Tan on...
Black and tan small Frenchie
Sat, 18.10.2025
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Missing dog Medford, photo: Lost Dog: Shy Blue Missing in Medford
alt
Reunited
Black and white. Name is Blue. We saw him Wed...
Wed, 15.10.2025
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Missing dog Hampton Bays, photo: Lost Dog: Limping in Hampton Bays
Lost Dog: Limping in Hampton B...
Sometimes walks with a limp
Thu, 09.10.2025
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Missing dog Bohemia, photo: Lost Dog: Tan with Gray Ears in Bohemia
Lost Dog: Tan with Gray Ears i...
Tan with grayish brown ears Neutered missing...
Sun, 28.09.2025
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Missing dog Coram, photo: Lost Dog: Brown & Cream on Teele Dr, Coram
Lost Dog: Brown & Cream on Tee...
Brown,cream
Sun, 28.09.2025
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Missing dog Coram, photo: Lost Dog: Black with White Markings, Coram
Lost Dog: Black with White Mar...
Black overall, white chest & a few white toes...
Fri, 26.09.2025
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Missing dog New York, photo: Lost Dog: Black & White in East Patchogue
Lost Dog: Black & White in Eas...
Black coat white underbelly black and white f...
Sun, 21.09.2025
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Missing dog Centereach, photo: Lost Dog: Black & Tan, Charles St, Centereach
Lost Dog: Black & Tan, Charles...
Black with tan spots. Long shaggy hair
Wed, 10.09.2025
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Missing dog Mastic, photo: Lost Frenchie: Pink Collar, Bent Tail
Lost Frenchie: Pink Collar, Be...
Merl frenchie she has a pink collar on her ta...
Mon, 08.09.2025
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Missing dog , photo: Lost Beagle Amy: Skittish, Pink Collar
Lost Beagle Amy: Skittish, Pin...
She’s a beagle with a dark pink collar. She’s...
Sun, 31.08.2025

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