Mastiff Adoption in Westminster, CO: Mastiff Puppies for Sale in Westminster, CO

Adopt a Mastiff near you in Westminster, Colorado

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 Westminster, Colorado

These Mastiffs are available for adoption close to Westminster, Colorado.

Tank

Mastiff Rottweiler

Male, Puppy

Denver, CO

Size

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

Details

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

Story

DOB: August or September 2025 Intact because waiting until full grown Personality: He is a really goofy, loving dog. The kind that will melt into you. He likes kids and other dogs. He has been to doggy daycare and boarding without issues. Medium/high puppy energy. He’s food motivated and he does well with training exercises. Likes to hike, go for walks, and play at the dog park. Can play too aggressively for some small dogs. On the purina hydrolyzed diet since June 10. Has had chronic diarrhea on chicken, lamb, and salmon protein based foods. New diet stopped diarrhea. Yay! Dog friendly vegetables and fruit for treats. Reason for Rehoming: I travel 50% of the time for a new job. During my travel periods it’s been hard to train and provide the right activity level. My adult dog, a 5 year old lab, isn’t getting the attention he needs because of the pup as well.

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Special Needs

Sabrina

Mastiff American Bulldog

Female, 7 yrs 9 mos

Boulder, CO

Size

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

Details

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

Story

Meet Sabrina, a gentle 6-year-old Mastiff mix who’s in need of a special forever home. Sabrina is living with mast cell tumors (MCT) due to cancer and is currently on medication to keep her as comfortable as possible. She requires a loving home that is prepared to offer her hospice care and a peaceful environment. Sabrina can be shy with new people and may give a warning growl or snap if approached when she’s not ready. However, once she builds trust, she becomes deeply affectionate and very attached to her people. She gets along well with mellow dogs and will thrive in a calm household where she can feel safe and loved. If you have a compassionate heart and are ready to provide a supportive and caring home for a special dog like Sabrina, you’ll find a loyal and loving companion in her.

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Huckleberry

Mastiff

Male, 1 yr 1 mo

Denver, CO

Size

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

Details

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

Story

I’m Huckleberry, a 1 year old male Mastiff mix. I am rather cute, if I do say so myself. Like many young dogs, I can be a little mouthy so may be a bit much for super-young kids, but I would do great with older kids and love attention. I enjoyed the tranquil atmosphere at Movie Night with my Foster family-tbh I slept through most of it! ********PLEASE READ BELOW PRIOR TO EMAILING IN**********If you are interested in adopting this dog or any other from our rescue, please go to https://www.hobocare.org/adopt to review our home requirements and fill out an application. Please do not email and ask for more information on how to adopt, all the information is already available online. The information you see here is all that is currently available about this dog. No boxers are adopted without a completed application and home check. Thank you! ##2619848##

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CHICKEN OF THE SEA

Mastiff

Male, 6 mos

Denver, CO

Size

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

Details

Spayed or Neutered,

Story

This pup is big, but his heart is even bigger! We are still young and there is a lot to learn. If you`re ready to teach this big baby how to be man`s best friend, please come down to say `hi`!*Previously lived with another dog

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WRECKNO

Mastiff

Female, 2 yrs

Denver, CO

Size

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

Details

Story

Hey there! My name is Wreckno! I am a fun loving and busy lady who can`t get enough cuddles and play time! Just a heads up, I do like to chase birds and may not do well in a home with small critters. But besides that, I am a super star who loves people! What I Need in My Home*No small critters/birds *Children in the home should be old enough to handle a big, energetic dog

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Nala

Mastiff Husky

Female, Adult

Erie, CO

Size

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

Details

Story

We have had Nala since she was 8weeks old! She is now 5 will be 6 December 22nd! She is a cuddle bug for sure and loves to play! shes very smart and learns quickly. She is kennel trained, house trained and knows basic commands. She loves her paw held. She will literally be your best friend. She needs an active loving family. I have developed an allergy to her fur and while i have been able to manage it pretty well our work situation is also changing within the next few weeks and i dont want her home alone or kenneled for the majority of the day. She deserves better than that. She is up to date on shots and goes to her annual well checks. Shes also been to doggy boarding and does great. Shes great with other dogs big or small and loves kids. she loves anyone that loves her honestly. She is not spayed but probably should be.

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Mastiff puppies and dogs in Westminster, Colorado

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Adopt a Mastiff near you in Westminster, Colorado

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Mastiff puppies and dogs in Westminster, Colorado

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Adopt a Mastiff near you in Westminster, Colorado

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 Westminster, Colorado

These Mastiffs are available for adoption close to Westminster, Colorado.

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Westminster, Colorado

Mastiff shelters & rescues in Westminster, Colorado

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics