Mastiff Adoption in Middlesex, NJ: Mastiff Puppies for Sale in Middlesex, NJ

Adopt a Mastiff near you in Middlesex, New Jersey

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 Middlesex, New Jersey

These Mastiffs are available for adoption close to Middlesex, New Jersey.

Twix

Mastiff Pit Bull Terrier

Male, 3 yrs 7 mos

Raritan, NJ

Size

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

Details

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

Story

Make A Difference in your Community - Adopt a Shelter Dog! Would you like to foster a Shelter Survivor? For more information, visit us at www.sheltersurvivors.com THIS IS A COURTESY POSTING – Twix is not in one of our foster homes and we have not met him, we are assisting his owners with finding him a new home. Here are fun facts his owner wants you to know: - Twix / 3yo / Male/ Neutered / 65 lbs / In great health - Mastiff/Herding mix - Up to date on vax since 8/25/25 - Will do best with experienced, active dog owners who would be able to be consistent with good daily habits to strengthen his foundational training. No other animals, no small children in the house. - Has had multiple professional training experiences, all successful. Quick improvements in training sessions. He is passionate about learning. - Housetrained and very communicative about needing the bathroom. Will whine/grumble, give paw or look at door. - He is crate trained and loves his crate. He will crate himself to take naps throughout the day and also will tuck himself to bed when the sun goes down and sleeps through the night. - Not destructive in the home at all, even when left alone. No separation anxiety. - Walks nice on leash! Big sniffer. Knows heel. - Energy level is average/medium. Will match your energy to be very active or a couch potato. Greets with excitement for just a few minutes. - Shines with his family/pack and loves physical and verbal affection. - Total silly playful goofball and sweetie pie who just wants to love. - Loves long walks (hiking and camping), swimming, tug and fetch. - Nervous when not introduced to new dogs and new people but eased with structured introduction or pack walk. 100% success rate when introduced to new people. Selectively reactive with intact males. - No cats is best. He is ok with cats if the cat leaves the dog alone. He lived 2 years with a male cat and they kept to themselves and lived peacefully. - Not socialized around kids. Unknown. - Resource guards around main meals and high value treats, but not with training treats. Very easy to train (food motivated). Does not protect empty bowl. - One bite due to mishandling by his previous owner. The dog was nervous around a stranger and the previous owner did not intro or deescalate then dropped leash. After a professional reactivity evaluation, a trainer assessed him to be safe and not serious about bites. - Previous owner got him as a puppy from a friend’s litter. To adopt Twix, please complete our online dog application at https://www.sheltersurvivors.com/application.html and return it to sheltersurvivors@live.com. Or, go to sheltersurvivors.com, click on the home page, look for "Application" at the top of the home page, and complete the application. Hit the submit button once you have completed the application in its entirety. Please do NOT leave any blank spaces, if something is not applicable type in N/A. This will expedite the adoption process. Adoption Fee: $300.00

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Juliana

English Mastiff Labrador Retriever

Female, Adult

Chester, NJ

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

You can fill out an adoption application online on our official website. Hi! My name is Juliana! I'm about 4 years old, 78 lbs. and housetrained. I am timid though, so I need a special home, one with another dog (or dogs), a fenced in yard and really patient people. I'm so lucky to have a great foster home but I know my FUR ever family is out there somewhere. Julianna is spayed, microchipped, and vaccinated. Go to our website to see more pictures of her. See Juliana playing here: https://www.facebook.com/NJSHPR/videos/703925398009073 If you are interested, submit an application at njshpetrescue.org * You must live within 90 minutes of Chester NJ to be considered as an in-person home visit is required for all adoptions. Visit this organization's web site to see any additional information available about this pet.March 13, 2026, 9:33 am

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Gracie

Mastiff Labrador Retriever

Male, 7 mos

east windsor, NJ

Size

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

Details

Spayed or Neutered,

Story

Meet Gracie, a bundle of joyful energy and loyalty! This little girl will bring laughter and love into your home with her playful and affectionate nature. Gracie is an intelligent pup who is always up for an adventure, and with her athletic build, she'll be your active companion. She has a heart of gold and a funny, loving spirit that will keep you on your toes. Gracie is eager to find her forever family and will be a devoted friend to whoever adopts her. Could that be you?

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Gus

Mastiff

Male, 6 yrs 2 mos

east windsor, NJ

Size

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

Details

Spayed or Neutered,

Story

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King Shady aka Cuto

Mastiff

Male, 8 yrs 9 mos

Hamilton, NJ

Size

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

Details

Story

At 8 years old, King Shady is a big-hearted Mastiff mix looking for a calm, understanding forever home. He may be a senior, but he’s still full of life and has plenty of love to give.When it’s time for a walk, King Shady is eager to head out but settles nicely once he’s outside—he doesn’t pull on leash and enjoys lumbering along at his own pace. He’s social with people, calm and curious when meeting new friends, and enjoys gentle pets and attention. With his handlers, King Shady is affectionate—he’ll lean in for scratches, roll over for belly rubs, and happily soak up time spent together.King Shady will need a home where he is the only pet. He can be reactive when seeing other dogs and should not live with children due to his resource guarding behavior around food. His perfect match is an experienced adopter who understands his needs and can give him a safe, structured environment where he can relax and shine.While King Shady isn’t interested in toys, he’s more about the simple joys in life—steady walks, quiet companionship, and people who respect his boundaries. He has so much love to give to the right person who can see past his quirks and offer him the stable, loving home he deserves.If you have a soft spot for seniors and experience with large breed dogs, King Shady might just be the loyal companion you’ve been waiting for. ??To complete adoption questionnaire: https://hamiltonmcnj.seamlessdocs.com/f/AdoptionApplicationTo see other available animals: https://www.hamiltonnj.com/173/Pets-Available-for-AdoptionHamilton Township Animal Shelter cannot offer any guarantees on the age, health, temperament, personality or mental disposition of any pet. Hamilton Township Animal Shelter cannot and does not represent, warrant, promise, or guarantee how the adopted pet will interact or react to the new home environment.

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Pocahontas URGENT BABY ‼️

Mastiff Shepherd (Unknown Type)

Female, Puppy

Hamilton, NJ

Size

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

Details

Good with kids, Good with dogs, Good with cats, Shots are up-to-date,

Story

🆘 URGENT – BABY GIRL POCAHONTAS NEEDS A HOME 🆘 Meet Pocahontas, a precious baby girl with the softest eyes and the sweetest soul. She is just a puppy — innocent, gentle, and completely trusting of the people around her. 💔 Pocahontas should be curled up in a warm home learning what love feels like, not waiting and hoping someone notices her in time. She is at a critical age where safety, stability, and affection will shape her entire future. One loving home will change everything for this little girl. 🏡 Please open your heart and home for Pocahontas PLEASE TEXT KAREN 4136298152

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Mastiff puppies and dogs in Middlesex, New Jersey

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Mastiff puppies and dogs in Middlesex, New Jersey

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Adopt a Mastiff near you in Middlesex, New Jersey

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 Middlesex, New Jersey

These Mastiffs are available for adoption close to Middlesex, New Jersey.

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Middlesex, New Jersey

Mastiff shelters & rescues in Middlesex, New Jersey

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics