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Mastiff puppies and dogs in Fairfax, Virginia

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

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Adopt a Mastiff near you in Fairfax, Virginia

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 Fairfax, Virginia

These Mastiffs are available for adoption close to Fairfax, Virginia.
We'll also keep you updated on Queen's adoption status with email updates.
Photo of Queen

Queen

Mastiff

Female, 3 yrs 10 mos
Aldie, VA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Good with dogs, Not good with cats, Spayed or Neutered,
Story
https://foha.org/pet/queen2023/ All hail me, your Queen! Hey there! My name is Queen, and I am a big, beautiful pup with a larger-than-life personality and a royal charm. The great outdoors is where I truly shine—I absolutely love going for walks and can never get enough of them! Leash walking? Piece of cake! I’m always ready for an adventure. Hiking is one of my absolute favorite things to do. Whether it’s a winding trail through the woods or a peaceful park, I’m in my element. There’s just something magical about exploring nature—splashing my paws in streams, sniffing out all the new scents, and, of course, rolling in the grass (I just have to!). I’m also a fantastic travel buddy. Car rides? No problem! I’m happy to either gaze out the window, watching the world go by, or just settle in with a tasty treat. And speaking of treats… let’s talk food. I. Am. FOOD. DRIVEN. Seriously, if you’ve got snacks, you have my full attention. Training? Yep, I’ve had training sessions, and with the right motivation (ahem, treats), I’m eager to learn and show off my skills. But let’s be real—I like to think I’m the one in charge, so I need a patient and consistent owner who knows my breed and can keep me on the right track. I’ve been in the shelter for two whole years, just waiting for my perfect match. I may come off as a bit sensitive, so I’d thrive in a quiet home where I can feel safe and comfortable. But once I warm up to you? Oh boy, get ready for endless love, constant demands for attention, and yes—plenty of slobbery kisses! If you can handle that, I promise I’ll be your best girl. I’d do best as the only dog in the home, soaking up all the love and attention (because let’s face it, I deserve it!). A household without kids would also be ideal, given my size and my big, excitable heart. But don’t let my size fool you—I’m a total teddy bear and a great house guest. I love hanging out with my favorite people, cuddling up, and just being part of the family. If you’re looking for a majestic, affectionate, food-loving, adventure-ready companion, I’m your girl! Let’s take on the world, one walk (or treat) at a time. If you’d like to meet me, fill out an application (no obligation), and let’s make it happen. Hope to see you soon!
We'll also keep you updated on Bruno 's adoption status with email updates.
Photo of Bruno

Bruno

Mastiff Boxer

Male, 2 yrs 5 mos
Washington, DC
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
House-trained, Spayed or Neutered,
Story
***50% of Bruno's adoption fee is sponsored by Petfinder*** 🐾 Meet Bruno: The Gentleman, The Scholar, and The Professional Snuggler! If you’re looking for a dog who balances "perfectly behaved gentleman" with "absolute goofball," look no further. Bruno is a soulful, emotive, and incredibly loyal companion who is ready to find his forever "person." With his expressive brows and heart-melting eyes, he doesn't just look at you—he looks into your soul. 🎩 The Perfect Gentleman Bruno is the gold standard for house manners. He is housebroken, crate trained, and a non-destroyer of household items (he saves his "demolition skills" strictly for his own toys and bones). A Clean Eater: He is incredibly food-motivated but has the gentlest mouth when taking treats. No mess, no grabby teeth—just pure politeness. The Hand-Holder: One of Bruno’s most endearing traits is his habit of putting his paw in your hand. It’s his way of saying "I love you" or "Hey, a snack would be great right now." Scholar Status: He already knows Sit, Stay, and Paw. He has a deep desire to learn more and will happily master new tricks for a piece of string cheese or a hot dog. 🧸 Playtime & Personality The Package Investigator: Expect Bruno to be the first one at the door when a delivery arrives. He takes his job as "Chief Package Inspector" very seriously, always checking to see if the box contains a new puzzle or bone. Goofy & Loving: He’s a total fan of hugs, kisses, and even little "nose nibbles." At night, he takes his job as a professional bed warmer very seriously. The Rolling Stone: Bruno loves a yard where he can zoom around and, more importantly, engage in some high-quality grass rolling. Balanced Energy: He’s got great energy for a walk or a game of fetch, but he’s equally content to be a lazy couch potato by your side. 🐕 On the Walk Bruno is a dream on a leash. He’s curious and aware, but he’s a "proactive" walker. He’s learned to sit and wait at corners until you give the "let’s go" signal. When he sees other dogs, he’s happy to give them space and can be easily distracted with treats—he’s a "look and move on" kind of guy! 🏡 Bruno’s Wish List Bruno is a sensitive soul who thrives on routine and clear boundaries. His ideal home includes: The "Quiet" Life: Bruno is sensitive to high-pitched sounds (he’s not a fan of the "click" of nail clippers!), so a calm environment is best. Room to Breathe: He loves open spaces where he can retreat and take some "me time" when he needs it. A home with a privacy-fenced yard would be his absolute dream. Grown-Up Friends: Because of his size and sensitive nature, he’d do best in a home with teenagers or adults only. Solo Pet Status: Bruno would likely thrive as an "only child" in a single-person home or a quiet household. He prefers a life free of cats or small "critters." Is Bruno the loyal, hand-holding partner you’ve been searching for? His Foster Family shared: "Bruno is the ultimate 'soulmate dog.' He has this incredible way of communicating just by using his expressive eyebrows or gently placing his paw in your hand to ask for a snack—or just a little bit of your time. He’s a total gentleman in the house, a world-class bed warmer, and honestly, he’s the best assistant I’ve ever had for unboxing packages! If you’re looking for a loyal, goofy best friend who truly listens, Bruno is your guy." Bruno's Amazon Wishlist: https://a.co/gIczf9a — ADOPTION DISCLAIMER: At Perfectly Paired Pitties (P3), we aim to provide accurate information about all of our animals to the best of our abilities. That said, we cannot guarantee that any dog is housebroken or crate trained and cannot promise any specifics regarding an animal's breed, size, health, behavior, temperament, or other conditions. Our adoption fee does not fully cover all vetting, medical care, food, supplies, or training costs. As we depend on donations to provide for the animals in our care, we are unable to reduce or refund the adoption fee. TO DONATE: Please visit our website at www.https://perfectlypairedpitties.org/Donate/ to make a donation. Your contribution will help Perfectly Paired Pitties (P3) continue providing essential medical treatment and training for our dogs.
We'll also keep you updated on Onyx's adoption status with email updates.
Photo of Onyx

Onyx

Mastiff

Male, 2 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 faithsanders25@gmail.comOnyx 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 emily.briskin@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!
We'll also keep you updated on Bertha's adoption status with email updates.
Photo of Bertha

Bertha

Mastiff

Female, Adult
Derwood, MD
Size
(when grown) -
Details
Good with dogs, Not good with cats, House-trained, Spayed or Neutered,
Story
Bertha’s Story Meet Bertha, a 3-year-old Mastiff mix with a heart as big as her paws. Bertha’s journey hasn’t been the easiest — she was found abandoned in an apartment after her owners moved out and left her behind. Thankfully, caring neighbors stepped in and did what they could for her before bringing her to a shelter so she could have a real chance at a better life. From there, Bertha went into a temporary foster home while waiting for a full-time foster, and that’s where her true personality began to shine. At first, Bertha was very shy and unsure, but it didn’t take long to see just how much love she had to give. With patience and kindness, she blossomed into the goofy, affectionate girl she truly is. Bertha absolutely loves to play and will never turn down a cozy lap to lay her big head on. She has lived with other dogs and has done well with them, but she would prefer a home without cats. When Bertha was rescued, she was very malnourished, so we are still working on helping her gain healthy weight. Her future family should expect her to be a big girl, likely around 110 lbs once she’s fully filled out — which just means 110 pounds of love. Bertha is looking for a family that will never leave her behind again — one that will give her the security, love, and couch space she deserves. In return, she’ll give you endless loyalty, laughs, and the sweetest snuggles. Could Bertha be the missing piece of your family? If you are interested in applying for Bertha please visit our website at www.keytolionsheart.org!      March 9, 2026, 8:11 am
We'll also keep you updated on Fernie *Courtesy Post*'s adoption status with email updates.
Photo of Fernie *Courtesy Post*

Fernie *Courtesy Post*

Mastiff

Female, Young
Stafford, VA
Size
(when grown) -
Details
Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
You can fill out an adoption application online on our official website. Fill out an Adoption Application Fern is now available please read her PetFinder post  https://www.petfinder.com/dog/fernie-d98ba9c5-c010-4bc0-b0e0-0e56e047e84b/pa/warrington/brookline-labrador-rescue-pa06/details/Click here to watch a video of Fernie *Courtesy Post*.Visit this organization's web site to see any additional information available about this pet. Application Fees, Adoption Donations and Rescue Policy: Please know that 100% of our fees and donations pay for the costs of rescuing dogs. These include but are not limited to pull fees from shelters, veterinary examinations, vaccinations, medications and care, microchips, neuter/spay surgeries, heartworm treatments, behavior evaluations, and foster care, as needed. Important notes before applying. Approved adopters must have their primary residence in one of the following states: Delaware, Maryland, Michigan, New Jersey, Ohio, Pennsylvania, West Virginia, Virginia, and parts of North Carolina and Kentucky. You must be at least 21 years of age to apply and legally sign our contract for adoption. Applications must be completed by the homeowner.  We do not adopt giant breed dogs to renters. If you are renting, and you are applying to adopt a dog that is not a giant breed, permission to adopt an animal must be obtained from the landlord or property owner. We do not adopt giant breed dogs to homes with children under 6 years of age. Homes with children should have a fenced yard. Applications will be denied if anyone residing in the household has a record indicating drug/alcohol abuse, theft, or violence. Pets currently in the applicant's home must have a history of appropriate veterinary care. Homes with intact dogs will not be approved for adoption.  Proof of any of the following exceptions is required: The intact dog is a working member of a law enforcement, or search and rescue/recovery team. The intact dog is registered under the auspices of the American Kennel Club and is actively being shown. A veterinarian has determined the sterilization procedure would harm the intact dog.  We believe in Force Free Training Methods and do not approve of methods or devices using pain or force to control the dog, or to deter undesirable behavior.  Homes with highly varnished steps must have carpeting, securely fixed stair treads, or a non-skid surface. **We encourage you to remediate potential safety issues while your application is under review, prior to the home visit. &#226&#128&#139Any inside steps to which the dog(s) have access, must have carpeting, securely fixed stair treads, or a non-skid surface. Homes with highly varnished floors must have non-slip area rugs or mats wherever your animal walks or rests frequently.  **Puppy Adoption Policy** To ensure proper house training and socialization, puppies will only be adopted to homes where an adult will not be away more than an hour per day, per month of age of the puppy, up to 6 months. Certain large-breed dogs should not be sterilized prior to 12 - 18 months of age.  If you adopt an intact puppy, you will sign an adoption contract agreeing to have the dog sterilized at your expense at the time your veterinarian recommends. Proof of sterilization must be provided to Mastiffs To Mutts Rescue as soon as the procedure is completed.  If the puppy is not sterilized as required, Mastiffs To Mutts Rescue reserves the right to claim legal ownership of the dog.  For additional information please review our FAQs or contact mastiffstomutts@gmail.com **Mastiffs To Mutts Rescue reserves the right to approve or deny any adoption that occurs through this organization without disclosure.  We reserve the right to make exceptions for special circumstances. **PA Kennel License: 05845   March 7, 2026, 8:15 pm

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Mastiff shelters & rescues in Fairfax, Virginia

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

Here are a few organizations closest to you:

Rescue

15.1 miles

Friends Of Homeless Animals

39710 Goodpuppy Lane, Aldie, VA 20105

Pet Types: cats, dogs

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Rescue

19.3 miles

Perfectly Paired Pitties (P3)

Washington, DC 20001

Pet Types: dogs

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Shelter

20.5 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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Rescue

25.2 miles

Key to Lion's Heart Rescue

P.O. Box 5570, Derwood, MD 20855

Pet Types: dogs

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Rescue

26 miles

Mastiffs to Mutts VA

Stafford, VA 22556

Pet Types: dogs

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Shelter

30.9 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

31.3 miles

Pep's Pals Rescue

Brookeville, MD 20833

Pet Types: cats, dogs

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Shelter

46.3 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

49.5 miles

Frederick County Esther Boyd Animal Shelter

161 Fort Collier Road, Winchester, VA 22603

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

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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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