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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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Boba

Mastiff

Female, Young
Enfield, NH
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Good with dogs, Not good with cats, Needs experienced adopter, House-trained,
Story
Thank you for your interest in adopting Boba! Boba is a 70 lb, 3 year old mastiff mix. Boba is a shy but energetic dog who loves to be outside in the nice weather. When spending time inside, she is a cuddle bug who loves to snuggle with her trusted humans. Boba does well with most dogs. She can be timid, so multiple positive meetings on leash is recommended before letting her off leash with another dog. My wife and I have worked hard with Boba over the past few years. We've acclimated her to living in a dwelling, and built up her trust and confidence around new and familiar people. Boba has completed two cycles of obedience classes. Like many rescue pets, Boba does have some insecurities and reactivity behaviors, so we do not believe she would do well in a home with small children. Boba does not do well in a crate. She does well in open spaces when home alone.Please reach out to us if you have any questions about Boba. We know she'll continue to do well in a loving home.

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Gracie

Mastiff/Labrador Retriever

Male, 9 mos
Salem, NH
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Meet Gracie, a bundle of joyful energy and loyalty! This little girl will bring laughter and love into your home with her playful and affectionate nature. Gracie is an intelligent pup who is always up for an adventure, and with her athletic build, she'll be your active companion. She has a heart of gold and a funny, loving spirit that will keep you on your toes. Gracie is eager to find her forever family and will be a devoted friend to whoever adopts her. Could that be you?

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clifford

Mastiff/Mastiff

Male, Adult
Goshen, NH
Size
(when grown) -
Details
Good with dogs,
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.March 12, 2026, 2:21 pm

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Mark

Mastiff/Mixed Breed (Medium)

Male, 2 yrs 5 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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Photo of Alamo

Alamo

Mastiff/Mixed Breed (Medium)

Male, 5 yrs
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

Saved By Grace Animal Rescue - NH

Goshen , NH 03752

Pet Types: dogs

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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

Lucky Tails Rescue - NH transport

Salem , NH 03079

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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