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Mastiff puppies and dogs in Baltimore, Maryland

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

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Adopt a Mastiff near you in Baltimore, Maryland

These Mastiffs are available in Baltimore, Maryland.
We'll also keep you updated on Luke AG's adoption status with email updates.
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Luke AG

Mastiff American Pit Bull Terrier

Male, 4 yrs
Baltimore, MD
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Not good with cats, Spayed or Neutered,
Story
Hi, I’m Luke, and I’m a big, lovable boy tipping the scales at just over 100 lbs! Don’t let my size fool you—I’m a happy, easygoing pup who just wants to play, explore, and cuddle. I’m all about the good things in life: squeaky toys, water play, long walks, and best of all—snuggle time on the couch. I’m a pro at giving hugs (though I’m working on not jumping up too hard to give them—oops!). I get along great with other dogs and kids, but because of my size and enthusiasm, I’d do best with older children who won’t get accidentally knocked over during playtime. I’m crate trained, housebroken, and walk nicely on a leash—unless there’s a squirrel… then it’s game on! I do have a slight prey drive, so a little guidance goes a long way. If you’re looking for a big-hearted, playful companion to fill your home with love (and maybe take up some space on your couch), I’m your guy. Let’s make forever happen! 🐾 Local adoption fee is $200(in TX) Out of state adoption fee is $450 (includes transport to your area)
We'll also keep you updated on Finn AKA Gage JuM's adoption status with email updates.
Photo of Finn AKA Gage JuM

Finn AKA Gage JuM

Mastiff Shepherd (Unknown Type)

Male, 6 yrs 11 mos
Baltimore, MD
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered,
Story
Finn may look like a rockstar with his striking Mastiff–Shepherd good looks, but at heart, he’s a big, soft lovebug. Weighing in at about 60 pounds, Finn has grown into a handsome boy with a beautiful gray and tan coat, soulful eyes, and an even bigger personality. Despite his star-quality appearance, Finn is more of a laid-back, easygoing guy—think Eeyore vibes, but with engines revved and ready to love. From the moment he wakes up, he’s prepared to shower his people with affection… and trust us, it’s A LOT of love! Finn does well with other dogs and does need a slow, proper introductions to new friends—both two-legged and four-legged. Once he knows you, he loves you deeply. He’s happiest when he has a buddy (human or canine) to share his world with. Affection is Finn’s specialty. When someone comes to greet him, he lights up, runs over with enthusiasm, and hands out slobbery kisses and big hugs like they’re backstage passes. His joy is genuine, his heart is huge, and he’s always thrilled to see his people. If you’re looking for a big, lovable, slightly goofy rockstar who will adore you endlessly, Finn is ready to take center stage in your heart. Local adoption only $200 (in TX)
We'll also keep you updated on Bruno PPJ's adoption status with email updates.
Photo of Bruno PPJ

Bruno PPJ

Mastiff

Male, Young
Towson transport, MD
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
You can fill out an adoption application online on our official website.Thank you for checking out our wonderful orphans. If you would like to find out more please email or call Diane at...diane@ulpr.org or 870-577-3744.   Please email us at  diane@ulpr.org  and request an application.Visit this organization's web site to see any additional information available about this pet.December 11, 2025, 3:57 pm

Or, how about these Mastiffs in cities near Baltimore, Maryland

These Mastiffs are available for adoption close to Baltimore, Maryland.
We'll also keep you updated on Luke AG's adoption status with email updates.
Photo of Luke AG

Luke AG

Mastiff American Pit Bull Terrier

Male, 4 yrs
Baltimore, MD
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Not good with cats, Spayed or Neutered,
Story
Hi, I’m Luke, and I’m a big, lovable boy tipping the scales at just over 100 lbs! Don’t let my size fool you—I’m a happy, easygoing pup who just wants to play, explore, and cuddle. I’m all about the good things in life: squeaky toys, water play, long walks, and best of all—snuggle time on the couch. I’m a pro at giving hugs (though I’m working on not jumping up too hard to give them—oops!). I get along great with other dogs and kids, but because of my size and enthusiasm, I’d do best with older children who won’t get accidentally knocked over during playtime. I’m crate trained, housebroken, and walk nicely on a leash—unless there’s a squirrel… then it’s game on! I do have a slight prey drive, so a little guidance goes a long way. If you’re looking for a big-hearted, playful companion to fill your home with love (and maybe take up some space on your couch), I’m your guy. Let’s make forever happen! 🐾 Local adoption fee is $200(in TX) Out of state adoption fee is $450 (includes transport to your area)
We'll also keep you updated on Finn AKA Gage JuM's adoption status with email updates.
Photo of Finn AKA Gage JuM

Finn AKA Gage JuM

Mastiff Shepherd (Unknown Type)

Male, 6 yrs 11 mos
Baltimore, MD
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered,
Story
Finn may look like a rockstar with his striking Mastiff–Shepherd good looks, but at heart, he’s a big, soft lovebug. Weighing in at about 60 pounds, Finn has grown into a handsome boy with a beautiful gray and tan coat, soulful eyes, and an even bigger personality. Despite his star-quality appearance, Finn is more of a laid-back, easygoing guy—think Eeyore vibes, but with engines revved and ready to love. From the moment he wakes up, he’s prepared to shower his people with affection… and trust us, it’s A LOT of love! Finn does well with other dogs and does need a slow, proper introductions to new friends—both two-legged and four-legged. Once he knows you, he loves you deeply. He’s happiest when he has a buddy (human or canine) to share his world with. Affection is Finn’s specialty. When someone comes to greet him, he lights up, runs over with enthusiasm, and hands out slobbery kisses and big hugs like they’re backstage passes. His joy is genuine, his heart is huge, and he’s always thrilled to see his people. If you’re looking for a big, lovable, slightly goofy rockstar who will adore you endlessly, Finn is ready to take center stage in your heart. Local adoption only $200 (in TX)
We'll also keep you updated on Bruno PPJ's adoption status with email updates.
Photo of Bruno PPJ

Bruno PPJ

Mastiff

Male, Young
Towson transport, MD
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
You can fill out an adoption application online on our official website.Thank you for checking out our wonderful orphans. If you would like to find out more please email or call Diane at...diane@ulpr.org or 870-577-3744.   Please email us at  diane@ulpr.org  and request an application.Visit this organization's web site to see any additional information available about this pet.December 11, 2025, 3:57 pm
We'll also keep you updated on Pluto's adoption status with email updates.
Photo of Pluto

Pluto

Mastiff Pit Bull Terrier

Male, Adult
Brookeville, MD
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
PLUTO – A Gentle Giant Who’s Learning What Love Feels Like   Pluto’s story is one of quiet strength, resilience, and hope. When he was first found, Pluto’s body told a heartbreaking story—thin, weak, and covered in the marks of neglect, he had clearly been struggling to survive for far too long. Yet even in his frailest moments, his eyes showed nothing but kindness and a longing to trust again.   With time, care, and steady meals, Pluto has begun to heal. His once fragile frame is filling out, his coat is regaining its shine, and his spirit is blossoming. Today, Pluto is discovering the joy of simple things—soft bedding, full bowls, gentle voices, and the company of people who see him for the beautiful soul he is.   Pluto is a large, calm, and affectionate boy. He moves with quiet confidence and has a gentle presence that draws you in. He gets along well with other dogs, especially those who are respectful and laid-back like he is. He’s not demanding; instead, he enjoys just being near his people, resting his head close by, or soaking up a few moments of peace in the sun.   After everything he’s been through, Pluto deserves a home that will offer him consistency, kindness, and the unconditional love he has always given in return. He is a living reminder that even after hardship, trust and joy can return with patience and care.   Pluto is neutered, microchipped, and up to date on vaccines and preventatives. He will be fully vetted prior to adoption.   Location: Texas (available for transport) Adoption Fee: $350 plus health certificate and transport (if out of state – varies by location) Adoption Process: The adoption contract and fee are finalized prior to transport. All Pep’s Pals Rescue adoptions include a virtual interview and video meet-and-greet.   Pluto is ready to leave his past behind and finally experience the comfort of a loving forever home. Could that be you?   Apply at pepspalsrescue.org/adopt   ##2541025##
We'll also keep you updated on Onyx's adoption status with email updates.
Photo of Onyx

Onyx

Mastiff

Male, 2 yrs 1 mo
Washington, DC
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
*Woof* Meet me at 71 Oglethorpe St NW between 12pm-7pm daily!Onyx is a variety of quartz and symbolizes protection and strength. And yes, that is me, the beautiful Onyx with a strong heart and a willingness to protect our life together. Apparently, Onyx also symbolizes the absorption of negativity and if you have seen my super wiggles, then you will believe that I can do this. I am a whole-body expert wiggler and when you come home and see me wiggle, it will make your day (and your coming home will make my day). I will bury into your hand or body just hoping that you`ll give me lots of pets and cuddles. I am curious, friendly and a true delight to be around and so it is good that I am a big boy so there is just more delight of me. I have been enjoying my walks here and am looking to acquire basic doggie manners. I hear there are yummy treats involved -- and food is one of my favorite things in the world! Are you open to bringing a gorgeous and happy dog into your life? I may be the right fit!
We'll also keep you updated on Bark Hamill's adoption status with email updates.
Photo of Bark Hamill

Bark Hamill

Mastiff

Male, 4 yrs 2 mos
Washington, DC
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
*Woof* I`m in a foster home. To meet me reach out to my foster caregiver at vonfoer2@gmail.com!Check out my awesome TikTok post (my foster family is the best): https://www.tiktok.com/t/ZP89y4f5G/My foster family says I`m a great dog. I came out of my shell very quickly and showed myself to be very friendly and sweet. I`m clearly people-oriented and eager to connect. I lived up to my reputation for good leash manners and really enjoyed a lick mat with peanut butter. Here are a few other things they said about me:- he is a very gentle giant, he absolutely loves to cuddle and shows a lot of affection. - he loves saying `hi` to other dogs and loves to play; he gets along great with our resident dog. - he loves to relax and take naps but is always ready for a nice walk; he is great on a leash! - he likes to lay by my side in his bed napping while I work. - he recently met some kids and did awesome with them. He even let them walk him! He was very calm with them and took treats very gently. I know some of the basic things, like sit, and am a good leash-walker, so we should be off to a good start when you take me home. Otherwise, I am a laid-back, easygoing pup who is always happy to be around my people. In sum, I am perfect -- and so ready to make your life perfect, too!

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Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Baltimore, Maryland.

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Related breeds in Baltimore, Maryland

Mastiff shelters & rescues in Baltimore, Maryland

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

Here are a few organizations closest to you:

Rescue

5.1 miles

God's Dog's Rescue of TX for MD Transport stop

Baltimore, MD 21212

Pet Types: dogs

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Rescue

7.7 miles

Pitter Pat Junction, MD transport

Towson transport, MD 21204

Pet Types: dogs

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Rescue

23.6 miles

Pep's Pals Rescue

Brookeville, MD 20833

Pet Types: cats, dogs

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Shelter

32.1 miles

Humane Rescue Alliance - Foster

71 Oglethorpe St. NW, Washington, DC 20011

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

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Shelter

32.1 miles

Humane Rescue Alliance - Oglethorpe St.

71 Oglethorpe St NW, Washington, DC 20011

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

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Shelter

34.9 miles

Queen Anne's County Animal Services

201 Clay Drive, Queenstown, MD 21658

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

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Shelter

35.7 miles

Prince Georges County Animal Services Division

3750 Brown Station Rd., Upper Marlboro, MD 20772

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

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Rescue

45.8 miles

Pitter Pat Junction, York PA transport

York transport, PA 17403

Pet Types: dogs

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Shelter

45.8 miles

Frederick County Animal Control

1832 Rosemont Ave, Frederick, MD 21702

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

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Shelter

46.3 miles

Talbot Humane

7894 Ocean Gateway, PO BOX 1143, EASTON, MD 21601

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

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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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