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Mastiff puppies and dogs in Watertown, Massachusetts

Looking for a Mastiff puppy or dog in Watertown, Massachusetts? Adopt a Pet can help you find an adorable Mastiff near you.

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Adopt a Mastiff near you Mastiff in cities near Watertown, Massachusetts Other pups in Watertown, Massachusetts Search for a Mastiff puppy or dog near you Browse Mastiff puppies and dogs in nearby cities Browse related breeds in Watertown, Massachusetts Mastiff shelters and rescues in Watertown, Massachusetts Learn more about adopting a Mastiff puppy or dog

Adopt a Mastiff near you in Watertown, Massachusetts

We don't see any Mastiffs available for adoption right now, but new adoptable pets are added every day. Try a different search below!

Or, how about these Mastiffs in cities near Watertown, Massachusetts

These Mastiffs are available for adoption close to Watertown, Massachusetts.
We'll also keep you updated on ALEX's adoption status with email updates.
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ALEX

Mastiff Chow Chow

Male, 2 yrs 7 mos
Boston, MA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
MY ADOPTION FEE WILL BE WAIVED 12/08-12/14!Meet Alex a lively, lovable pup with a big personality and an even bigger heart. Alex is currently on the road to recovery after TPLO surgery and is recovering from heartworm treatment. While he is on activity restriction for now, do not let that fool you, this boy has energy to spare and a playful spirit thats just waiting to shine once he has healed.Because of his high energy and temporary limitations, Alex will need a patient and experienced home that can help him channel that zest for life into brain games, enrichment activities, and plenty of mental stimulation. He is working hard on being a good boy during recovery, and he is making great progress with structure and support.When he has had his fill of mental fun and the zoomies are out of his system, Alex melts into a total cuddle bug. If you`re looking for a smart, spirited companion and you`re ready to help guide him through his healing journey, this squishy guy just might be your perfect match.

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We'll also keep you updated on Ardis's adoption status with email updates.
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Ardis

Mastiff

Female, Puppy
Boston, MA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,
Story
**EVENT DEPOSIT PENDING**Adoptable in: MA, RI, NH, CT, and VTGood with dogs: YesGood with cats: YesGood with kids: Yes, dog savvy childrenCrate trained: YesHouse Trained: Mostly Ardis is a happy, sweet and good girl. She has the cutest little wrinkles next to her mouth when she smiles and her tongue is usually lolling. She has a medium energy level and would love a family who will share their adventures with her.Ardis is very excited when she meets other dogs and can’t wait to play with them. She would do best with other dogs who are as enthusiastic as she is about playtime! She has met a cat and backed away when it hissed at her, so would most likely coexist just fine with a cat sibling. Ardis has been around young kids and did well, but she is still perfecting her manners, so dog savvy kids would be best. She likes to play tug-of-war and wrestle with other dogs.Ardis will go in her crate happily and settles straight away. She is mostly house trained so long as her cues are not missed. She is learning basic commands and how to walk on a leash.Ardis is a playful girl with lots of love to give her new family! Is yours the one she’s been waiting for? Please Note: All dogs are posted on our website until they are officially adopted. This dog may have other interested adopters in line. If you are interested in adopting, please fill out an application on our website at www.lasthopek9.org. Last Hope K9 Rescue is licensed with the Massachusetts Department of Agricultural Resources (#0151).December 14, 2025, 12:53 am

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We'll also keep you updated on Mark's adoption status with email updates.
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Mark

Mastiff Mixed Breed (Medium)

Male, 1 yr 8 mos
Salem, MD
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
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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We'll also keep you updated on Alamo's adoption status with email updates.
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Alamo

Mastiff Mixed Breed (Medium)

Male, 4 yrs 3 mos
Salem, MD
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
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We'll also keep you updated on Gus's adoption status with email updates.
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Gus

Mastiff

Male, 5 yrs 8 mos
Salem, NH
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
-

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We'll also keep you updated on Marley 3 months Avail-12/18's adoption status with email updates.
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Photo of Marley 3 months Avail-12/18

Marley 3 months Avail-12/18

Mastiff

Female, Young
Sterling, MA
Size
(when grown) -
Details
Spayed or Neutered,
Story
Supporters and Recurring Giving Donors will be put on our VIP Application List &#226&#128&#139 Adoption Costs and other important information. Adoption fees and what is included in your adoption fee: https://www.sterlingshelter.org/pet-finder/animal-rescue-fee/   &#226&#128&#139 Current Hours and VIP Donor (Effective 07/30/2024) Tuesday through Friday are open hours 11am to 5pm. Saturday open hours 10am to 4pm. We are closed on Sunday and Monday. All surrenders are still by prior approval and appointment only. Even if you are only coming in to look during our open hours, you can still fill out our application prior to visiting. This will save time if you do decide to adopt. Preference on adopting a pet is given to our Shelter Supporters and VIP Donors   .  When animals arrive at the shelter, VIP donors will be emailed and given the first option to set up an appointment to view an animal of their choice. Click on the link above for full details. Due to limited staff, we may not be able to answer the phones. All information is available on this website, or can be answered by email to  staff@sterlingshelter.org  . Please be patient, we are doing the best we can to handle the volume. If you don't See any pets on our PETS for ADOPTION PAGE - it simply means that all of the animals were adopted.  We have several areas in/around the shelter to view and interact with the pet/s that you are potentially going to adopt. This includes outdoor, fully fenced yards. We encourage you to bring currently owned dogs so you can introduce them to any dogs that you are interested in adopting. Planning YOUR Visit to Adopt: please plan to arrive 5-10 minutes prior to your appointment time,  please make sure you have any/all necessary paperwork required for adoption  and help us stick to our schedule/s - so others do NOT have to wait. You should plan  * For cats/kittens plan for 30 to 45 minutes. * For dogs/puppies plan for 45 to 60 minutes.   If you have another dog/s at home - make sure to   bring him/her - we have plenty of space/areas to do a meet and greet with a new dog and your dog/s. If you need to cancel your appointment - please email us ASAP at  staff@sterlingshelter.org Adoption Costs and other important information. Supporters and Recurring Giving Donors will be put on our VIP Application List &#226&#128&#139 December 13, 2025, 2:33 pm

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Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Watertown, Massachusetts.

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Mastiff puppies and dogs in nearby cities

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Related breeds in Watertown, Massachusetts

Bullmastiffs in Watertown, Massachusetts Neapolitan Mastiffs in Watertown, Massachusetts Saint Bernards in Watertown, Massachusetts

Mastiff shelters & rescues in Watertown, Massachusetts

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

Here are a few organizations closest to you:

Shelter

5.9 miles

MSPCA - Boston Adoption Center

350 South Huntington Avenue, Boston, MA 02130

Pet Types: cats, birds, dogs, rabbits, reptiles, small animals

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Rescue

6.4 miles

Last Hope K9 Rescue

71 Commercial St, #184, Boston, MA 02113

Pet Types: dogs

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Rescue

29.4 miles

Lucky's Legacy Rescue - NH Transport Stop

Salem, MD 03079

Pet Types: cats, dogs, small animals

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Rescue

29.4 miles

Lucky Tails Rescue - VT transport

Salem, NH 03079

Pet Types: dogs

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Shelter

30.2 miles

Animal Shelter Inc of Sterling

17 Laurelwood Rd, Sterling, MA 01564

Pet Types: cats, dogs, rabbits, reptiles, small animals

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Rescue

35.6 miles

Pitter Pat Junction, NH transport

Rockingham transport, NH 03033

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 basics

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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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