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Mastiff puppies and dogs in Manassas, Virginia

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

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These Mastiffs are available for adoption close to Manassas, Virginia.
Photo of Queen

Queen

Mastiff

Female, 4 yrs 6 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!
Photo of Beauty

Beauty

Mastiff

Female, Young
Arlington, VA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,
Story
Please contact Perry Meade (perrym@luckydoganimalrescue.org) for more information about this pet.Beautiful and oh so sweet head tilting expert ISO forever home! BEAUTY NEEDS A FOREVER HOME!!!! Name:   BEAUTY         Best Guess for Breed:   MASTIFF MIX   Best Guess for Age:   4 years as of Sept. 2026          SEX:    female   Approximate Weight:   76.2 lbs   Gets Along With:  Other dogs and cats! We have seen Beauty with kids at our adoption event and she has done very well. We are happy to discuss integration techniques with any potential adopters!   Currently Living at:   DC area foster   BEAUTY is Looking For:   This brindle beauty is looking for a forever home! If you are looking for a tremendous sweetheart wrapped in a stunning brindle coat, Beauty is your girl! At 4 years old, she is a well-mannered, soulful companion. Beauty is a certified expert in the 'Mastiff Head Tilt.' She can tilt her big, cute head from side to side to show you she is listening intently. It is impossible not to smile when Beauty looks at you! Beauty is looking forward to meeting you, becoming your loyal family member, and enjoying the cozy life, fun, and good dog food she knows you have in store for her!    What My Foster Says About Me: Beauty is the definition of a gentle giant! Despite her size, she has the sweetest, most gentle soul, and everyone who meets her agrees that she’s an absolute gem. She is a loving girl who enjoys being near her people and will happily follow you around the house for company. Beauty has lovely house manners! She enjoys her daily walks, taking her time to sniff and explore everything along the way, but she’s just as happy spending the day relaxing on her dog bed. Beauty enjoys polite hellos with other dogs and has been wonderful with the cat in her foster home, happily giving it space and doing her own thing. She loves affection, exploring her surroundings, and simply being part of the family. With her gentle nature and big heart, Beauty is sure to make a wonderful companion! Lucky Dog cannot guarantee any dog is housebroken.  All of our dogs are working on their crate training.  TO ADOPT: The adoption fee for this dog is $460, which includes the cost of routine vetting, including vaccinations and spay/neuter. If you are interested in adopting, please complete the Adoption Questionnaire online   at   bit.ly/adoptaluckydog  .   Lucky Dog Animal Rescue does our best to provide accurate information about the dogs we have for adoption. That said, we cannot make any guarantees about age, breed or temperament.   Thank you for contacting Lucky Dog Animal Rescue and helping to save a life!  Please visit us online at      www.luckydoganimalrescue.org   .    BE A FOSTER!!! Fosters make it possible for Lucky Dog Animal Rescue to save and care for homeless and abandoned dogs! To learn about fostering, please contact fostering@luckydoganimalrescue.org! BE A SPONSOR!!!! Sponsors help Lucky Dog support the many dogs we save. To learn more about sponsorship, please contact     info@luckydoganimalrescue.org   ! November 5, 2026, 7:14 am
Photo of Gemma *Courtesy Listing*

Gemma *Courtesy Listing*

English Mastiff

Female, Adult
Stafford, VA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered,
Story
You can fill out an adoption application online on our official website. Fill out an Adoption Application Meet Gemma - 4 year old English Mastiff. The Professional Couch Potato! If you're looking for a laid-back, lovable, 100+ pound lap dog, Gemma is your girl Gemma is the definition of chill. Her favorite hobbies include laying around, soaking up attention from her people and going for car rides with the windows down. She can be a little shy when you first meet her, but give her a minute and she warms right up -- and when she bonds, she bonds HARD! You'll have a shadow for life! She's easy to care for and does great for nail trims at home or at the groomer. Gemma was raised around kids, cats, and other foster dogs, so she's seen it all and takes it all in stride. Truly, Gemma would be great in just about any home that has room for one more big, sweet, snuggly couch cushion. Could Gemma be your new co-pilot and cuddle buddy?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, 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. ​Any 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  November 2, 2026, 5:30 pm
Photo of Cosmo

Cosmo

Mastiff

Female, Puppy
Stafford, VA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Shots are up-to-date,
Story
You can fill out an adoption application online on our official website. Fill out an Adoption Application Please take the time to research the breed before considering fostering/adoption. Because of their immense size, strength, and strong guardian instincts, they are generally not recommended for first-time or novice owners. They require experienced handling, early socialization, and ongoing training throughout their lives. Meet Cosmo...an Independent Spirit, Born Guardian Personality: Cosmo is a spirited, adventurous, intelligent Caucasian Shepherd puppy with a big personality and natural guardian instincts. She absolutely loves having an older sister and brother! She has already learned so much from watching them, including manners and how to look after and protect the herd. She is observant, confident, curious, and always ready for her next adventure. This is a working guardian breed, and her protective instincts are already beginning to develop. She needs a family who understands that these traits are part of who she is and is prepared to guide them through consistent training, structure, and responsible socialization. Cosmo is also very independent and already shows the self-assured nature of her breed. She likes to explore, observe, and figure things out for herself. She isn't just looking for someone to entertain her—she has a mind of her own and natural instincts that will need to be guided by someone who understands guardian breeds. Her independence is part of what makes her special, but it also means she'll need a patient, confident owner who can provide consistent boundaries without expecting a people-pleasing dog. Favorite Activities: Running, exploring, playing, and going on wild adventures ALL DAY LONG! Cosmo loves having room to roam, following the animals, observing her surroundings, and learning from the older dogs. She enjoys being involved in everything happening around the homestead and is happiest when she has space to explore and a job to do. She is an energetic puppy who needs plenty of room, stimulation, and appropriate outlets for her natural instincts. A small yard or city lifestyle would not be a good fit for her. Medical Issues: No known medical issues reported at this time. What would be the best kind of home: Cosmo needs an experienced, committed home that understands and respects the Caucasian Shepherd breed. A rural property, farm, or homestead with substantial, secure fencing and plenty of room to roam would be ideal. She is accustomed to being around animals and developing her natural livestock guardian instincts, so a home that understands working guardian dogs would be best. She would benefit from having confident, well-mannered canine companions who can help show her the ropes, although any resident dogs must be a good match for her as she matures. Her new family must be prepared to provide consistent boundaries, structured training, early and ongoing socialization, and responsible management of her developing protective instincts. Food is a serious business for Cosmo! She has already shown resource-guarding tendencies, so her adopters must understand resource guarding and be willing to manage it safely and work on it through appropriate, positive training. She needs careful management around food and other valuable resources, not punishment or confrontational attempts to take things away. Cosmo is adorable, playful, and full of adventure, but she is also growing into a powerful guardian breed with strong instincts. She is not a fit for an apartment, a small city yard, or a home unfamiliar with large livestock guardian breeds. She needs space, knowledgeable handling, and a family willing to help her grow into a confident, stable, well-managed adult dog.Click here to watch a video of Cosmo.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, 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. ​Any 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  November 2, 2026, 5:30 pm
Photo of Gamora

Gamora

Mastiff

Female, Puppy
Stafford, VA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Shots are up-to-date,
Story
You can fill out an adoption application online on our official website. Fill out an Adoption Application Please take the time to research the breed before considering fostering/adoption. Because of their immense size, strength, and strong guardian instincts, they are generally not recommended for first-time or novice owners. They require experienced handling, early socialization, and ongoing training throughout their lives. GAMORA HAS ENTERED THE CHAT… AND SHE’S HERE TO GUARD THE GALAXY!    Meet Gamora, the fluffy little force of nature who takes her name VERY seriously. She may look like an adorable teddy bear right now, but don't let those puppy eyes fool you… this girl is training for a lifetime position as Guardian of the Galaxy!    Gamora is a Caucasian Shepherd puppy available for adoption through Mastiffs to Mutts, and she's looking for a special family ready to help her grow into the magnificent guardian she's meant to be.   Fair warning: That cute, fluffy puppy is going to grow into a VERY LARGE, VERY STRONG, VERY CONFIDENT, and VERY OPINIONATED dog. Think security system with fur, a big personality, a mouth full of teeth and absolutely no concept of personal space.    PERSONALITY: SMALL PUPPY, BIG GUARDIAN ENERGY   Gamora is adventurous, intelligent, confident, and already showing off those natural guardian instincts! She's the little sister who knows exactly which buttons to push on her big brothers… and pushes EVERY. SINGLE. ONE.    She keeps her older brothers on their toes, loves a good wrestling session, and believes the universe revolves around her next adventure.   She's also a smart cookie! Gamora already knows: Sit Down “Me”  Wait patiently for her food Wait before exiting the house Walks nicely on a leash Who says a galaxy guardian can't have manners?!    FAVORITE ACTIVITIES: Exploring the galaxy… or at least the campground! Camping trips and outdoor adventures Attending community events and checking out the world Playing with her big brothers and keeping them humble Learning new things and showing off those brains Practicing her future job of keeping an eye on her surroundings Gamora has already experienced camping trips and several community events, giving her valuable opportunities to experience new people, places, and situations. She's a curious girl with a whole world to discover!   HER FOREVER HOME: NOT FOR THE FAINT OF HEART!   Here's where we get serious, Guardians.    The Caucasian Shepherd is a powerful livestock guardian breed developed to protect and watch over its territory. These dogs are often naturally protective, independent, strong-willed, and suspicious of unfamiliar people or animals. Those traits aren't flaws to train away — they're part of the breed.   Gamora needs a family who understands that the adorable puppy stage is temporary, but the guardian instincts are here to stay.   Her ideal forever home will include:   ROOM TO ROAM: A home with plenty of appropriate space and secure fencing to safely accommodate a giant guardian breed.   A COMMITMENT TO TRAINING: Gamora is already learning, and her education must continue with consistency, structure, clear boundaries, and positive, appropriate guidance.   EARLY & LIFELONG SOCIALIZATION: She needs continued, thoughtful exposure to different people, environments, sounds, and experiences. Socialization means helping her feel comfortable and behave appropriately around the world — not expecting her to love every stranger or every dog.   RESPECT FOR HER FUTURE SIZE & STRENGTH: This girl will grow into a powerful dog capable of easily overwhelming an inexperienced handler. Her family must be prepared to manage her strength responsibly and maintain safe, controlled interactions throughout her life.   BREED KNOWLEDGE & REALISTIC EXPECTATIONS: Gamora needs someone who appreciates a working guardian breed and understands that independence, territorial behavior, and protective instincts require responsible management — not wishful thinking.   A LIFETIME PROMISE: She needs a family who will guide her, advocate for her, and love her through puppy shenanigans, teenage stubbornness, and adulthood.   Gamora isn't looking for someone who simply thinks she's pretty (although, let's be honest, LOOK AT THAT FACE!). She's looking for someone who understands what she's becoming and is excited to help her become a stable, well-mannered, confident adult dog.   THE GALAXY IS WAITING, BUT GAMORA NEEDS HER PEOPLE!    If you're experienced with giant guardian breeds, prepared for the responsibility, and ready to invest in the training and socialization this incredible girl deserves, Gamora may be your next great adventure!   Please share her story to help Mastiffs to Mutts find the right forever family for this extraordinary girl.   GAMORA: Fluffy now. Guardian in training. Future giant.    Adopt responsibly. Train consistently. Love fiercely.  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, 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. ​Any 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  November 2, 2026, 5:30 pm
Photo of Athena *Courtesy Post*

Athena *Courtesy Post*

English Mastiff

Female, Adult
Stafford, VA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Not good with cats, Spayed or Neutered,
Story
You can fill out an adoption application online on our official website. Fill out an Adoption Application Meet Athena! Athena is a 4 year old gorgeous brindle mastiff. She is already spayed and has had gastropexy surgery done. Athena would benefit from training and would do best with someone who is strong enough for her as she is a leash puller. Athena is a big girl who needs assistance getting into vehicles. Athena needs a home with no cats, farm or small animals of any kind as she has a high prey drive.Click here to watch a video of Athena *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, 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. ​Any 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  November 2, 2026, 5:30 pm

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Mastiff shelters & rescues in Manassas, Virginia

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

Here are a few organizations closest to you:

Rescue

13.8 miles

Friends Of Homeless Animals

39710 Goodpuppy Lane, Aldie, VA 20105

Pet Types: cats, dogs

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Rescue

19.4 miles

Lucky Dog Animal Rescue

5159 Langston Blvd, Arlington, VA 22207

Pet Types: cats, dogs

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Rescue

22.6 miles

Mastiffs to Mutts VA

Stafford, VA 22556

Pet Types: dogs

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Shelter

26.3 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

34.2 miles

Furever Home Animal Rescue

FREDERICKSBURG, VA 22401

Pet Types: cats, dogs

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Shelter

35.8 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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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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