Mastiff Adoption in Mount Vernon, WA: Mastiff Puppies for Sale in Mount Vernon, WA

Adopt a Mastiff near you in Mount Vernon, Washington

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These Mastiffs are available for adoption close to Mount Vernon, Washington.

Finn AKA Gage JuM

Mastiff Shepherd (Unknown Type)

Male, 7 yrs 5 mos

Everett, WA

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 $300 (in TX)

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Luke AG

Mastiff American Pit Bull Terrier

Male, 4 yrs 6 mos

Everett, WA

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 $300(in TX) Out of state adoption fee is $550 (includes transport to your area)

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Ruby

Mastiff Husky

Female, Puppy

Sequim, WA

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Good with dogs, Spayed or Neutered,

Story

Meet Ruby! Ruby came to WAG after being rescued from a house fire as a young puppy, and she has grown into a joyful adolescent with plenty of personality. She's playful, curious, and genuinely loves spending time with people. Whether she's learning, playing, or joining you for an adventure, Ruby is eager to participate in all the things! Ruby has lots of fun adolescent energy and would thrive with an engaged family that can provide regular activity, and continued reward-based training. She enjoys learning and responds beautifully when training feels positive and rewarding. Ruby currently shares her space with a canine roommate, so she may be able to live with another well-matched dog following thoughtful introductions. A securely fenced yard would give her a safe place to play and explore, and a home with children age 5 or older would likely be the best fit for her enthusiastic personality. Ruby is already spayed, vaccinated, and ready to begin her next chapter. She cant wait to meet you! Visit our website to fill out an Adoption Application http://www.wagsequimwa.com If you have any questions, please email: office@wagsequimwa.com. Most of our dogs require a fully fenced yard, this does depend on the individual dogs needs and safety requirements. Adoption donation fee up to $350 (Please understand this adoption donation goes towards helping all the dogs we rescue) August 13, 2026, 3:08 pm

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Tiger

Mastiff Shepherd (Unknown Type)

Male, Adult

Lynnwood, WA

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

FOSTER OR FOREVER HOME NEEDED! Say hello to Tiger! He is a loving and sweet ~3yo, ~90lb Mastiff/Shepherd mix who is ready to find his forever home. He came to us as a stray from a high kill shelter in CA. Tiger is a wonderful boy and has a great demeanor. He is super loving with everyone he meets and very gentle. He walks wonderful on leash and will make a great dog for his forever family! He has been good with other dogs in our care. We think he would do just fine with kids, but he is not tested with cats. Tiger is neutered, UTD on shots and microchipped. His adoption fee is $450.

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Benicio

Mastiff Mixed Breed (Large)

Male, 4 yrs 2 mos

Woodinville, WA

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Spayed or Neutered,

Story

Look at this handsome guy! And he's not all looks, he's got personality plus! Benicio is charming, silly, playful, and fun. He has an adorable tail nub that wags as hard as it can when he meets you! Benicio was found with hundreds of porcupine quills in his face, and even after all that, he's still the sweetest boy. We don't know how Benicio is with other dogs or cats, so any introductions to resident pets should be done slowly. He is a large guy and can startle with noises and quick movements, so he will likely do best in a quiet, dog-experienced home with just older kids. If you're ready to welcome home Benicio, make an adoption appointment to meet him today! *Benicio's adoption fee is waived in thanks to a generous donor and our Pay it Forward program.

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Queenie

Bullmastiff Mastiff

Female, Adult

Lynnwood, WA

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Good with dogs, Not good with cats, Spayed or Neutered, Shots are up-to-date,

Story

FOSTER OR FOREVER HOME NEEDED! Queenie is a ~6 year old, 110lb, Boerboel. She came to us with Ozzie, the male Cane Corso, and ideally we would like to adopt them out together as a bonded pair! If they are adopted separately, they will need another large calm dog of the opposite sex in the home. Queenie was an owner surrender and is such a loving girl who desperately wants to be in a home again. The kennel environment has been stressful for her and she would be so grateful to be in a home asap. She bonds deeply to her people and her dog companion and is affectionate and sweet. Queenie has been a little more stressed in the kennel environment than Ozzie and could really benefit from a calm and loving home to help her decompress. She does well on walks but is very strong, and has a prey drive, so will require adopters that can handle her size and strength. We are looking for adopters experienced with large breeds. We are continuing to socialize and evaluate Queenie’s dog socialization, but she is not good with small dogs or cats. If adopted separately from Ozzie, she will need another large calm male in the home, no small dogs. Apply if you are experienced and looking are looking for a giant lovable girl, or duo! Queenie is a wonderful girl and will make her forever family very happy! Queenie is spayed, UTD on shots and microchipped. Her adoption fee is $500.

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Mastiff puppies and dogs in Mount Vernon, Washington

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Adopt a Mastiff near you in Mount Vernon, Washington

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 Mount Vernon, Washington

These Mastiffs are available for adoption close to Mount Vernon, Washington.

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Mount Vernon, Washington

Mastiff shelters & rescues in Mount Vernon, Washington

Looking for a specific shelter or rescue?

Want to learn more about adopting a Mastiff puppy or dog?

Mastiff basics

Mastiff basics