Mastiff Adoption in Maryland: Mastiff Puppies for Sale in Maryland

Adopt a Mastiff near you in Maryland

Below are our newest added Mastiffs available for adoption in Maryland. To see more adoptable Mastiffs in Maryland, use the search tool below to enter specific criteria!

*Ripple*

Mastiff

Male, 1 yr

Frederick, MD

Size

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

Details

Story

*No Small ChildrenI am a fun and active guy who will need help learning a few manners. I do know sit. I like to counter surf and I am a very treat motivated guy. I like my food and will take my bowl with me so I can eat without any distractions. I will need an active family who will give me lots of exercise.

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*DUMPLING

Mastiff

Male, 2 yrs

Upper Marlboro, MD

Size

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

Details

Story

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Rhino

Mastiff

Male

Hollywood, MD

Size

(when grown) -

Details

Story

You can fill out an adoption application online on our official website.Rhino is a handsome 2-year-old Cane Corso with soulful eyes and a quiet, thoughtful presence. He can be shy when first meeting new people, but once he feels comfortable, his gentle and affectionate personality begins to shine. He forms meaningful bonds with those who earn his trust and has a soft spot for the ladies. Rhino is crate trained when left alone and does very well overnight outside of the crate. He has experience being around dogs of many sizes and personalities and generally does well, especially with appropriate introductions and clear expectations. He has a solid foundation of training and shows good potential for continued growth. Rhino’s foster mom is actively working with him to build confidence, reinforce structure, and support positive behaviors as he prepares for his forever home. Transition & Training Support To ensure Rhino’s success during adoption, there will be a 4–6 week training and transition period with his foster mom as he moves into his new home. This period is intended to provide continuity, consistency, and guidance during a major life change. The goal is a smooth transition that supports Rhino emotionally and behaviorally while setting clear expectations for long-term success. Adopters should be prepared to participate in this transition process and maintain the routines and training strategies that have already been established. Ideal Home & Adopter Expectations Rhino will thrive in a home that understands large-breed dogs and values structure, patience, and ongoing training. His ideal home will include patient and consistent adopters who allow him time to adjust and build trust; a willingness to actively participate in the 4–6 week transition and training period; clear structure, routine, and boundaries; experience with large or guardian-type breeds (or a strong commitment to learning); proper dog introductions and ongoing social guidance; an an understanding that training is an ongoing process, not a one-time solution.A calm, supportive environment with clear communication will allow Rhino to grow into theconfident, loyal companion he is capable of becoming.SummaryRhino is a gentle giant with a soft heart who is looking for an adopter ready to invest in him,guide him, and appreciate his steady, meaningful bond. With patience, consistency, andcontinued support, Rhino will make an incredible lifelong companion Visit this organization's web site to see any additional information available about this pet.January 15, 2026, 4:27 pm

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Hachi

Mastiff

Male, 1 yr 7 mos

Hagerstown, MD

Size

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

Details

Good with kids, Good with dogs,

Story

Hachi is a 1.5 year old male Mastiff/Lab mix who weighs around 80 lbs. He was rescued from a high kill shelter in rural Arkansas and is ready to find a home. Hachi is super sweet, loving and a very calm pup who has been a volunteer favorite at the shelter! He gets along well with everyone he meets including other dogs. Hachi is truly just a big love bug waiting for a home! Hachi is neutered, fully vetted and microchipped. Our pups come with one month of free pet insurance when you adopt. If you’re interested in adopting, please fill out an application on our website at https://packleadersrescue.com/adoption-application/

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Kori

Mastiff

Female, Adult

Hyattsville, MD

Size

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

Details

Good with kids, Good with dogs, Not good with cats, Needs experienced adopter, House-trained,

Story

Hello! This is Kori. She is 5 yrs old. An sweet energetic girl. She loves people and is also very affectionate. Kori came to me as a boarding and daycare client however her previous owners went through some life changes and couldnt keep her. They were considering giving her to the shelter however I didn't think she would do well in that environment. She does get nervous in new noisy places so i decided to foster. I run a boarding business so shes been around all size dogs. She does well with male dogs. Other females take some warming up to but in time she's ready to play. She has been around small children via her previous home and loves children. She does know the basics (Sit, Stay, Down etc.) She is house and crate trained as well. She is an free adoption. She is coming with everything needed (Beds, Crate, food). I am also offering to help pay 50% towards training to help her transition into her new home. Kori is such a good dog. She would make a great addition to the family.

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Pluto

Mastiff/Pit Bull Terrier

Male

Brookeville, MD

Size

(when grown) -

Details

Good with dogs,

Story

PLUTO – A Gentle Giant Who’s Learning What Love Feels Like Pluto’s story is one of quiet strength, resilience, and hope. When he was first found, Pluto’s body told a heartbreaking story—thin, weak, and covered in the marks of neglect, he had clearly been struggling to survive for far too long. Yet even in his frailest moments, his eyes showed nothing but kindness and a longing to trust again. With time, care, and steady meals, Pluto has begun to heal. His once fragile frame is filling out, his coat is regaining its shine, and his spirit is blossoming. Today, Pluto is discovering the joy of simple things—soft bedding, full bowls, gentle voices, and the company of people who see him for the beautiful soul he is. Pluto is a large, calm, and affectionate boy. He moves with quiet confidence and has a gentle presence that draws you in. He gets along well with other dogs, especially those who are respectful and laid-back like he is. He’s not demanding; instead, he enjoys just being near his people, resting his head close by, or soaking up a few moments of peace in the sun. After everything he’s been through, Pluto deserves a home that will offer him consistency, kindness, and the unconditional love he has always given in return. He is a living reminder that even after hardship, trust and joy can return with patience and care. Pluto is neutered, microchipped, and up to date on vaccines and preventatives. He will be fully vetted prior to adoption. Location: Texas (available for transport) Adoption Fee: $350 plus health certificate and transport (if out of state – varies by location) Adoption Process: The adoption contract and fee are finalized prior to transport. All Pep’s Pals Rescue adoptions include a virtual interview and video meet-and-greet. Pluto is ready to leave his past behind and finally experience the comfort of a loving forever home. Could that be you? Apply at pepspalsrescue.org/adopt ##2541025##

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Below are our newest added Mastiffs available for adoption in Maryland. To see more adoptable Mastiffs in Maryland, use the search tool below to enter specific criteria!

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Mastiff puppies and dogs in Maryland

Jump to:

Adopt a Mastiff near you in Maryland

Below are our newest added Mastiffs available for adoption in Maryland. To see more adoptable Mastiffs in Maryland, use the search tool below to enter specific criteria!

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in Maryland cities

Mastiff shelters & rescues in Maryland

Looking for a specific shelter or rescue?

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

Mastiff information

Mastiff basics