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

Adopt a Mastiff near you in Keyport, 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 Keyport, New Jersey

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

Nina

Mastiff

Female, Puppy

Perth Amboy, NJ

Size

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

Details

Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Nina is just a pup, came in as a stray and is now ready to begin her life as a cherished family member. She is a true puppy requiring of all the basics, including structure, patience and training to succeed as a happy and well balanced dog! Please consider the commitment of adopting a puppy and choose wisely because Nina deserves the best! All Perth Amboy Animal Shelter residents will be fully vaccinated, spayed/neutered and microchipped prior to adoption. You must be 23 or older to adopt from the shelter, complete an Adoption Application and pay the associated adoption fee. The application must be approved by the shelter staff and all adoptions are finalized based on the best interests of our animals. Come visit us Monday - Friday between 10am and 4pm and Saturday/Sunday from 10am - 3pm. Contact us at (732) 324-3877 and don't forget to ask about our Foster Program!February 15, 2026, 1:38 pm

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Sasha

Mastiff Terrier (Unknown Type, Medium)

Female, Young

Sayreville, NJ

Size

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

Details

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

Story

Sasha is a sweet female Mastiff mix, 69 lbs and about 1½ years old, who is looking for a safe place to land. She was found as a stray and is believed to have possibly been hit by a car. A veterinary exam showed no broken bones, which is great news, but she is still being monitored for any possible after effects.Sasha is a bit timid at first, which is understandable given what she has likely been through. With a slow approach and a calm, gentle greeting, she begins to relax and show her softer side. She walks well on a leash and seems to appreciate quiet reassurance.As we spend more time getting to know Sasha, we will continue to share updates about her personality and needs. For now, she is a gentle soul who could really use patience, kindness, and a loving home.If you are interested in meeting Sasha, please complete an Interest Form. An adoption counselor will contact you to schedule an appointment.February 13, 2026, 4:51 pm

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Bon Jovi *foster needed*

Mastiff

Male, Young

New York, NY

Size

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

Details

Good with dogs, Spayed or Neutered, Shots are up-to-date,

Story

Meet Bon Jovi, a 3 year old, 84 pound, wonderful Mastiff mix. He is friendly and gets along with other dogs well! If you would like to adopt this dog, please visit email rescue@pupstarzrescue.org or visit www.pupstarzrescue.org for an application! www.pupstarzrescue.org Please Follow us on Instagram: @pupstarzrescue Like us on FaceBook! www.facebook.com/PupStarzRescue PupStarz rescue cannot guarantee the breed, size, temperament, or age of any dog.

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Twix

Mastiff Pit Bull Terrier

Male, 3 yrs 3 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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Gus

Mastiff

Male, 5 yrs 10 mos

east windsor, NJ

Size

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

Details

Spayed or Neutered,

Story

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LOUIE in NY to meet & greet!

Mastiff

Male, 6 yrs 5 mos

New York, NY

Size

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

Details

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

Story

This is LOUIE! He is in New York waiting to meet you! This loyal guy has one thing on his mind - to love his human. This 76.5 pound (as of 8/11/24) and approximately 5.5 year old (as of January 31, 2025) gentle soul is affectionate and loves to just relax on the couch. He wants to be with his human to get hugs and kisses. His gentle nature and easy going personality are the perfect combination. We think he is a Mastiff mix. This handsome guy was on an euthanasia list in California but we rescued him. LOUIE is calm and laid back. His will make a perfect best buddy. If you're interested in making LOUIE part of your family, please fill out an application on our website or send us an email with any questions. We can't wait to hear from you! If you feel that LOUIE is a good fit for you/your family, please complete an application from our site, miraclesforsatosrescue.org FOR IMMEDIATE CONSIDERATION PLEASE COMPLETE AN APPLICATION! https://www.miraclesforsatosrescue.org/adopt Please then email the application back to us at miraclesforsatosrescue@gmail.com ------------------------------------- PLEASE READ: This dog is currently located in New York and is ready for a meet and greet. Once an adopter is approved, we transport to New York/New Jersey! We strive for our dogs to be adopted into the right home. The best fit for the dog is our priority. Please make sure you are ready to properly exercise and give a dog all it need for fulfillment. In addition, we cannot guarantee breed of any dog or expected adult size of puppy. Please also note that any dog that is "house trained" will still need patience in a new home, new people and new schedule. Please be ready to house train ANY dog you adopt! Thank you for understanding.

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Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Keyport, New Jersey.

Mastiff puppies and dogs in Keyport, New Jersey

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Mastiff puppies and dogs in Keyport, New Jersey

Learn More:

Adopt a Mastiff near you in Keyport, 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 Keyport, New Jersey

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

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Keyport, New Jersey

Mastiff shelters & rescues in Keyport, New Jersey

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics