Mastiff Adoption in Apache Junction, AZ: Mastiff Puppies for Sale in Apache Junction, AZ

Adopt a Mastiff near you in Apache Junction, Arizona

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 Apache Junction, Arizona

These Mastiffs are available for adoption close to Apache Junction, Arizona.

Tank

Mastiff

Male, 5 yrs 3 mos

Gilbert, AZ

Size

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

Details

Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Meet Hank! This impressive and devoted Boerboel — a striking, 5-year-old neutered male with a heart as big as his presence. Confident, intelligent, and deeply loyal, he embodies the true spirit of a guardian breed and flourishes in a home that understands and appreciates his protective nature. He would do best in an adult-only home (no kids), as he plays rough and doesn’t always realize his own strength. This boy loves to explore and would be happiest on a property with space, where he can spend most of his time outdoors doing what he loves—patrolling, roaming, and taking in his surroundings. While he enjoys his independence, he also appreciates human interaction on his terms. He may take a little time to warm up, but once he trusts you, he’s a solid, loyal companion. Ideal Home: Adult-only household Experienced, confident dog owner Property or large yard preferred Someone who understands guardian breeds He’s a great dog in the right setting—strong, smart, and full of character. With the right person, he’ll be an incredibly rewarding companion. Please email ADOPT@VALLEYDOGS.ORG for an adoption application.

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LU LU

Mastiff

Female, 4 yrs 3 mos

Mesa, AZ

Size

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

Details

Spayed or Neutered,

Story

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Janice

English Mastiff

Female, Young

Mesa, AZ

Size

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

Details

Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered,

Story

Janice is a female Mastiff mix pup who recently joined the Big Hearts for Big Breeds crew. She's got the kind of sweet face that instantly melts hearts! Janice is another sibling from the beloved “Friends” foster pups, and she’s already showing what a special girl she is. Playful and curious, Janice is settling right into her new foster home and learning the ropes alongside other large dogs. She enjoys playtime, companionship, and is gaining confidence every day as she adapts to her new surroundings. With her loving nature and easygoing personality, Janice is ready to grow into a wonderful companion for a family who will continue guiding her, loving her, and cheering her on as she blossoms.

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Maple

English Mastiff

Female, Young

Mesa, AZ

Size

(when grown) Med. 26-60 lbs (12-27 kg)

Details

Good with dogs, Good with cats, House-trained, Spayed or Neutered,

Story

Maple is a one-year-old Mastiff mix who may be petite in size, but she’s overflowing with personality, playfulness, and charm. Now in the care of Big Hearts for Big Breeds, this sweet young girl is ready to find a forever family to grow up with. Maple is the sibling of some familiar Big Hearts faces—the beloved “Friends” crew, Rachel, Monica, Phoebe, and Janice—but she’s just beginning her own rescue journey. Like her siblings, she is shy and timid at first, but she truly has a loving heart and is eager to make lasting connections with the people around her. Still very much a puppy, Maple loves to play and brings a fun, energetic spirit wherever she goes. She does well with other dogs and was around cats when she was younger, giving her a solid foundation as she continues to learn and mature. With continued guidance, socialization, and plenty of positive experiences, she’s sure to blossom into an incredible companion. Maple is looking for a family that will embrace her youthful enthusiasm, celebrate her milestones, and give her all the love she deserves. If you’re searching for a playful, affectionate best friend with a bright future ahead, Maple might just be the perfect addition to your home.

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Dr Dre

English Mastiff Great Dane

Male, Adult

Mesa, AZ

Size

(when grown) -

Details

Spayed or Neutered,

Story

Dr Dre is a five-year-old Great Dane/Mastiff mix with a big heart, a big personality, and a whole lot of love to give. Just over a year ago, Dre found a family of his own, but sometimes life changes and circumstances shift. Through no fault of his own, Dre has found himself back with Big Hearts for Big Breeds, and we’re committed to helping him find the right forever home this time around. So, what do we know about Dre? He’s great with other dogs, wonderful with kids, and absolutely loves his people. Dre is the kind of dog who loves hard, plays hard, and will keep you laughing with his goofy personality. And when the fun is over, he’s happiest curled up beside the people he loves. Dre isn’t a “problem dog.” He’s a dog who thrives with leadership. He wants someone he can trust—someone who can provide consistency, confidence, clear expectations, and kind guidance. When Dre has that structure, he shines. He doesn't want to be in charge; he wants to know that someone he trusts has things handled. The good news? Dre comes with an incredible foundation of training. His trainer has invested in helping him become the best version of himself and is committed to supporting his future foster or adopter with follow-up training sessions. His next family won't be navigating this journey alone. Dre is looking for someone who understands the responsibility and rewards of living with a giant-breed dog and is ready to continue the structure that helps him succeed. Give him the leadership he needs, the consistency he craves, and the love he so freely gives, and you'll have one incredibly devoted companion by your side. Sometimes the second chance is the one that finally sticks. Dre is ready for his.

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MAGNUM

Mastiff

Male, Adult

Chandler, AZ

Size

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

Details

Not good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Please note this dog is NOT an official Underdog dog, and you will be connected with the person who has the dog. Please Contact (Current Owner of Dog): Brittany Schultz; 510-458-4151; animal.shelter@sierravistaaz.gov MEET MAGNUM!! Magnum is a friendly, goofy, and even-tempered male dog who has been patiently waiting at the Sierra Vista Animal Shelter for over 340 days and is more than ready for a fresh start. He walks well on leash, enjoys car rides, and loves toys, bringing a playful spark and charm wherever he goes. Magnum does best with adults and would thrive in a calm, experienced home where he can soak up attention and structure. While he can tolerate other dogs, he would be happiest as the only pet, but any potential canine siblings should be introduced through a proper meet and greet. His history shows he does best in a stable environment, and with the right person, Magnum will be a loyal, fun-loving companion who’s eager to finally have a place to call home. If you are interested in meeting this dog, please visit our website for our online application www.underdogaz.com PLEASE NOTE: This dog is courtesy posted for another individual or Rescue. Different policies and fees may apply. March 7, 2026, 4:34 pm

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These Mastiffs are available for adoption close to Apache Junction, Arizona.

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Mastiff puppies and dogs in Apache Junction, Arizona

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Adopt a Mastiff near you in Apache Junction, Arizona

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 Apache Junction, Arizona

These Mastiffs are available for adoption close to Apache Junction, Arizona.

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Apache Junction, Arizona

Mastiff shelters & rescues in Apache Junction, Arizona

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics