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Mastiff puppies and dogs in New Hampshire

Looking for a Mastiff puppy or dog in New Hampshire? Adopt a Pet can help you find an adorable Mastiff near you.

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Adopt a Mastiff in New Hampshire Search for a Mastiff puppy or dog Mastiff puppies and dogs in New Hampshire cities Mastiff shelters and rescues in New Hampshire Learn more about adopting a Mastiff puppy or dog

Adopt a Mastiff near you in New Hampshire

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

Mastiff

Female, 6 mos
Henniker, NH
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs,
Story
Meet Katie! Katie is a 6 month old mix breed pup. She is currently in north Texas getting all of her vaccines, spayed, microchipped and heartworm/flea/tick preventative. She loves playing with the dogs in her foster home. She would love to have a home with another dog to play with. Katie will need a home that will house/leash/crate train her and help her to be the best Katie she can be. If you are interested in adopting Katie please complete an adoption application: https://www.lifesaverssp.org/adoption-application/https://www.lifesaverssp.org/adoption-application/ NOTE: This pet is currently in Texas and will transport north once an adopter or foster is secured.

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Photo of Hansel & Gretal URGENT ‼️

Hansel & Gretal URGENT ‼️

Mastiff

Male, Adult
Seabrook, NH
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, House-trained,
Story
🚨 URGENT: HANSEL & GRETAL NEED A WAY FORWARD—TOGETHER 🚨 Hansel and Gretal are a bonded Mastiff pair whose family is facing more than anyone should have to bear. Their dad passed away from cancer, and now their mom needs back surgery. She is having trouble walking and can no longer manage their care on her own. She is desperate for help finding a safe solution for them. This isn’t a family giving them up because they stopped loving them. It’s a heartbreaking situation that has left their mom needing support and Hansel and Gretal needing a new place to land. They’ve already lost their dad; they deserve the comfort of staying together as they face this next change. Please help Hansel and Gretal find a home—or the support they need—so they don’t have to be separated. They need someone willing to give this devoted pair a chance and help them through a difficult transition. Their family is asking for help, and time matters. ❤️🐾 PLEASE HELP TEXT KAREN 4136298152

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clifford

Mastiff/Mastiff

Male, Adult
Goshen, NH
Size
(when grown) -
Details
Not good with kids, Good with dogs, Not good with cats,
Story
You can fill out an adoption application online on our official website.Clifford the big black dog is a beautiful massive dog! He is BIG and his personality is just as BIG! This guy has been a joy, he is a happy playful guy. He doesnt realize he's such a big guy and loves to sit in your lap. He is well mannered and behaves very well. He does meet the standard for the mastiff breeds. He is protective of his family and home. He knows basic commands and he absolutely LOVES to play. He will chase a ball, play tug of war, and he even plays hide and seek. We have only introduced him to one other dogs so far, a smaller pit bull female. We took things slow and they did fine together. He wasn't overly playful with her, they really just co-exist. He is fully vetted. He is neutered, chipped, heartworm negative and on prevention and also UTD on vaccines. We would like to find him a home with giant dog breed experience. These dogs arent for everyone but they are fantastic for the right people. He is currently in a foster home in Shreveport, LA but we do adopt out of state.Visit this organization's web site to see any additional information available about this pet.October 15, 2026, 4:12 pm

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Photo of Mark

Mark

Mastiff/Mixed Breed (Medium)

Male, 2 yrs 6 mos
Salem, NH
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
-
Story
Hello there, I'm Mark! I may be young, but I've got a heart full of love to give. Every morning, I wake up excited for the day ahead. I love playing with my favorite chew toy, but what I really crave is a good game of fetch with a human friend. I'm a quick learner, too! I've already mastered 'sit' and 'stay', and I'm eager to learn more. I promise to be your loyal companion, always ready for an adventure or a cozy nap on the couch. I'm not just looking for a home, I'm looking for a family. Adopt me and let's create a lifetime of wonderful memories together.

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Alamo

Mastiff/Mixed Breed (Medium)

Male, 5 yrs 2 mos
Salem, NH
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
-

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Search for a Mastiff puppy or dog

Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in New Hampshire.

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Mastiff puppies and dogs in New Hampshire cities

Mastiff Puppies near me Mastiff in Berlin Mastiff in Claremont Mastiff in Concord Mastiff in Dover Mastiff in Franklin Mastiff in Keene Mastiff in Laconia Mastiff in Lebanon Mastiff in Manchester Mastiff in Nashua Mastiff in Portsmouth Mastiff in Rochester Mastiff in Somersworth

Mastiff shelters & rescues in New Hampshire

There are animal shelters and rescues that focus specifically on finding great homes for Mastiff puppies in New Hampshire. Browse these Mastiff rescues and shelters below.

Here are a few organizations

Rescue

Arcadia Animal Rescue - NH Transport

Seabrook , NH 03874

Pet Types: cats, dogs, small animals

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Rescue

Lucky's Legacy Rescue - NH Transport Stop

Salem , NH 03079

Pet Types: cats, dogs, small animals

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Rescue

Lifesavers: Skylyr's Passion Rescue - Henniker, NH

Henniker , NH 03242

Pet Types: dogs

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Rescue

Saved By Grace Animal Rescue - NH

Goshen , NH 03752

Pet Types: dogs

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Looking for a specific shelter or rescue?

If you're not seeing what you're looking for, try our shelter and rescue search. We have more than 17,000 organizations in our database with furry pals waiting for a new home!

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

We've got all the info you need on adopting and caring for a Mastiff puppy . Check out the links below for everything you ever wanted to know about Mastiff puppies and adults .

Mastiff information

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Where do Mastiffs come from? How many types of Mastiffs are there? From the history of the breed to question about average height, weight and size, brush up on these basic facts about the Mastiff.

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