Mastiff Adoption in New York: Mastiff Puppies for Sale in New York

Adopt a Mastiff near you in New York

Below are our newest added Mastiffs available for adoption in New York. To see more adoptable Mastiffs in New York, use the search tool below to enter specific criteria!

Mastiff/Rhodesian Ridgeback

Male, Adult

Maine, NY

Size

(when grown) Med. 26-60 lbs (12-27 kg)

Details

Good with kids, Not good with dogs, Good with cats, House-trained,

Story

JD is an absolutely amazing dog. We have had this beautiful boy for about four years. We got him as a companion for a great day and they are best friends. He likely has some mastiff and Rhodesian Ridgeback in him and some pitbull as well. He is absolutely wonderful with children. He was crate trained, and never runs away. He is typically a docile dog, but can be protective. He is a cuddler. Recently, my cousin’s dog was sitting on my sons lap and JD went over and the dog nipped at him. Jay retailiated and unfortunately the other dog ended up passing away. The vets we have talked to feel that he was simply trying to protect my son. He has never gone after or attacked a human. And he plays with our others dogs and cats all the time. Maybe reading this doesnt make My boy sound appealing, but we are praying to find him a great home and hope you will consider. Our kids are absolutely heartbroken. The vet feels that we should rehome him to a home with no other dogs to be safe.

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Silvermist (Maroon)

Mastiff/American Pit Bull Terrier

Female, 7 yrs 2 mos

Waverly, NY

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Story

Meet Silvermist, a 7-year-old female Pit/Mastiff mix with the perfect balance of playful spirit and laid-back charm. Despite her age, she still enjoys her lively moments and will happily join in on some fun when the mood strikes. When playtime is over, Silvermist is more than content to curl up on the couch and soak up all the love and affection she can get. With her gentle nature and affectionate heart, she’s an ideal companion for someone looking for a sweet, loyal dog who enjoys both activity and cozy cuddle time.Stray Haven Humane Society & SPCA194 Shepard Rd., Waverly, NY 14892(607) 565-2859, www.strayhavenspca.org Open hours:Tuesday-Friday 10am-5pmSaturday-Sunday 10am-4pmClosed on Mondays

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Grant (GA)

Mastiff

Male, Adult

New York, NY

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Good with kids, Good with dogs, Good with cats,

Story

You can fill out an adoption application online on our official website.Meet Grant (GA) – A Gentle Giant Ready for LoveGrant (GA) is a male Mastiff, approximately 2 years old as of December 2025. When he was first found in a shelter, he was heartbreakingly emaciated and weighed only 89 pounds, far below what a healthy Mastiff should weigh. Despite his rough start, Grant has shown nothing but sweetness, gratitude, and resilience. He is now safe with Rescue Dogs Rock NYC and looking for the forever family he deserves.Grant’s personality is as warm as his big brown eyes. He adores people and thrives on human affection, always eager to lean in for a cuddle or wag his tail in greeting. He gets along beautifully with other dogs and even cats, making him a wonderful companion for households with multiple pets. Though he is a large breed, Grant is calm, gentle, and easygoing, with a sweet nature that shines through in every interaction. This gentle giant is searching for a family who will help him continue his recovery, support him as he gains the healthy weight he needs, and shower him with the love he has always deserved. In return, Grant will offer unwavering loyalty, endless cuddles, and a lifetime of companionship.If you are ready to open your heart and home to Grant, please apply to adopt him online at www.rescuedogsrocknyc.org.Please be sure to reference this pet's name as Grant (GA) in case of duplicate names within the rescue. Thank you!RDR's adoption fees include the cost of spay/neuter/microchip at an RDR-approved facility, whether completed before adoption or if deferred because the pet is too young or has a medical issue. All pets are also current on age-appropriate vaccines at the time of adoption. Given technical constraints on this database, this pet's location may not be as listed here. We can, however, provide transport support for pets in foster at a considerable distance from the adopter.Visit this organization's web site to see any additional information available about this pet.January 9, 2026, 1:35 am

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Gus

Mastiff

Male, Adult

Albany, NY

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Good with kids, Good with dogs, House-trained,

Story

Meet Gus! Gus is a charming 3-year-old mastiff mix with a heart as big as his paws. This gentle giant is friendly, outgoing, and absolutely loves people. He gets along wonderfully with other dogs and kids—just be prepared for a little “bull in a china shop” energy when he gets excited! Gus is house-trained, kennel-trained, and making great progress with his leash skills. He’s also an excellent car buddy, happy to settle in and enjoy the ride. If you’re looking for a lovable, goofy companion who brings joy wherever he goes, Gus might just be your perfect match! https://www.shelterluv.com/matchme/adopt/NAF/Dog

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Ollie

Mastiff

Male, 2 yrs 4 mos

East Hampton, NY

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Good with kids, Good with dogs, Not good with cats,

Story

Meet Ollie, the handsome two-year-old gentle giant we pulled from a Long Island shelter just before he was euthanized. Now he’s ready to start a new chapter with a family who will adore him. Large in size but overflowing with love, Ollie has a gentle heart and an affectionate personality that makes him think he’s a lapdog even if he takes up most of the couch. He knows his basic commands, enjoys making new friends, and loves following you around just to be close. Ollie would thrive with someone who appreciates a loyal, sweet companion with endless love to give. If you’re looking for an oversized cuddle buddy who’s all heart, Ollie might just be your perfect match.

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Prince

Mastiff/American Pit Bull Terrier

Male, Puppy

Central Islip, NY

Size

(when grown) Med. 26-60 lbs (12-27 kg)

Details

Good with dogs,

Story

looking for a new loving home for my dog. Hes a sweet, affectionate, and well-behaved boy who deserves more time and attention than I can give right now. I recently accepted a new job opportunity, and with my current schedule, I cant properly accommodate his needs. He is a great dog who loves people, enjoys playtime, and just wants to be loved. He will come with his cage, bed, toys, and food so he can adjust comfortably in his new home. Im hoping to find someone preferably someone with No other pets , and a big yard who can give him the time, care, and consistency he deserves.

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Mastiff puppies and dogs in New York

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Adopt a Mastiff near you in New York

Below are our newest added Mastiffs available for adoption in New York. To see more adoptable Mastiffs in New York, use the search tool below to enter specific criteria!

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in New York cities

Mastiff shelters & rescues in New York

Looking for a specific shelter or rescue?

Want to learn more about adopting a Mastiff puppy or dog ?

Mastiff information

Mastiff basics