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Mastiff puppies and dogs in Denver, Colorado

Looking for a Mastiff puppy or dog in Denver, Colorado? Adopt a Pet can help you find an adorable Mastiff near you.

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Adopt a Mastiff near you Mastiff in cities near Denver, Colorado Other pups in Denver, Colorado Search for a Mastiff puppy or dog near you Browse Mastiff puppies and dogs in nearby cities Browse related breeds in Denver, Colorado Mastiff shelters and rescues in Denver, Colorado Learn more about adopting a Mastiff puppy or dog

Adopt a Mastiff near you in Denver, Colorado

These Mastiffs are available in Denver, Colorado.
Special Needs
Photo of Sabrina

Sabrina

Mastiff American Bulldog

Female, 6 yrs 8 mos
Boulder, CO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Not good with kids, Not good with dogs, Not good with cats, 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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Photo of Coda

Coda

Mastiff

Female, Adult
Denver, CO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Not good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Looking for a loving new home for our sweet girl. Charging to be sure she goes to a good home! Coda is a playful, affectionate dog who lives for her daily naps and has been a beloved part of our family. She's been wonderful with our four kids and will be deeply missed. As we prepare for an upcoming move, we're hoping to find her a new home as soon as possible. Name: Coda Female English Mastiff Spayed/Gastropexy Up to date on shots Age: 4 years (born 2/12/2021) AKC Registered Location: Denver, CO Please reach out if you're interested in giving her a forever home! (I have puppy pics as well if you're interested)

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Or, how about these Mastiffs in cities near Denver, Colorado

These Mastiffs are available for adoption close to Denver, Colorado.
Special Needs
Photo of Sabrina

Sabrina

Mastiff American Bulldog

Female, 6 yrs 8 mos
Boulder, CO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Not good with kids, Not good with dogs, Not good with cats, 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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Photo of Coda

Coda

Mastiff

Female, Adult
Denver, CO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Not good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Looking for a loving new home for our sweet girl. Charging to be sure she goes to a good home! Coda is a playful, affectionate dog who lives for her daily naps and has been a beloved part of our family. She's been wonderful with our four kids and will be deeply missed. As we prepare for an upcoming move, we're hoping to find her a new home as soon as possible. Name: Coda Female English Mastiff Spayed/Gastropexy Up to date on shots Age: 4 years (born 2/12/2021) AKC Registered Location: Denver, CO Please reach out if you're interested in giving her a forever home! (I have puppy pics as well if you're interested)

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Photo of Maximoo

Maximoo

Mastiff

Male, Adult
Golden, CO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Not good with kids, Not good with dogs, Not good with cats, Spayed or Neutered,
Story
Maximoo is the biggest boy with the biggest heart! Get ready, because this sweet guy likes to lean all of his 225 pounds into you while he gets pets. Maximoo is a gentle giant and a laid back fella who enjoys leisurely, sniffy strolls around the neighborhood before napping the afternoon away. Do you have room in your home and heart for this handsome boy? Come meet with Maximoo today! Primary Color: Tan Weight: 218.9 Age: 3yrs 0mths 1wks

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Photo of Tenille

Tenille

Mastiff

Female, 3 yrs 10 mos
Aurora, CO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Not good with kids, Not good with dogs, Not good with cats,
Story
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Special Needs
Photo of Faith

Faith

Mastiff Labrador Retriever

Female, Young
Bailey, CO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Needs special attention, Needs experienced adopter,
Story
This is Faith , she is a purebred Mastador and will be 1 in May. She is really sweet and loves to be outside ! For more information contact me. She does have a few health issues. I am willing to negotiate her cost, if it’s the right fit, my husband and I paid 3500 for her.

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These pups are in Denver, Colorado too!

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

Neapolitan Mastiff Mastiff

Male, 6 yrs 8 mos
Boulder, CO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Not good with kids, Not good with dogs, Not good with cats, Needs experienced adopter, Spayed or Neutered, Shots are up-to-date,
Story
Zen is a 6-year-old male Neo Mastiff mix who’s as big-hearted as he is big in stature. Rescued from a shelter after his previous owners surrendered him for being “too big,” Zen is now on the hunt for his forever home where he can truly shine. Zen is a sweet, playful giant with a lot of energy for his breed. He’s very intelligent and learns quickly, making him a joy to train. However, Zen prefers to be the only dog in the home; he can get jealous and aggressive with other dogs, wanting all the attention for himself. When he's your one and only, he’s incredibly loving and will shower you with affection. Though he’s not reactive to other dogs on leash, Zen does best in a home without canine companions. He appreciates careful introductions to new people, especially those who approach unexpectedly. Zen’s ideal owner will be someone experienced with his breed and capable of continuing his training and socialization. If you’re ready to welcome a devoted and energetic companion into your life, Zen could be the perfect fit. He’s looking for a loving home where he can be the center of attention and enjoy all the love he has to give!

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Bonded Pair
Photo of Latigo

Latigo

St. Bernard

Female, 9 yrs
Denver, CO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Not good with cats,
Story
Dixie and Latigo come to us after their human dad passed and Dixie started escaping the yard on a regular basis. Their human mom recognized that she could not keep them safe and asked us to help. We of course said YES! Things they will need in their new home – a yard with a 6 foot fence. Normally we don’t require fences, but for these two a 6 foot fence is an absolute MUST. They will still try to get over it, but won’t be able to. They are still learning the finer points of being inside dogs, but are doing really well so far! Dixie is definitely the leader with these two – she’s first to try new things and Latigo will follow her. They are also learning about leash manners – and so far are doing really well!

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Photo of Mortimer

Mortimer

St. Bernard Shepherd (Unknown Type)

Male, 4 yrs 8 mos
Denver, CO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Hi there!  Mortimer here, checking in after arriving in Colorado! Im between 1 and 2 years old (no one ever told me my real birthday so the nice doctor at the vet's office took a guess) and the rescue people asked me to tell you a little bit about myself. I love tug of war!  I figured i would start with that since its really important that my new home like to play that with me.  I also like to play with other dogs, but can get a little scared if they are super loud and in my face at first.  I am "crate-trained" whatever that means, and enjoy these things called "leash walks" where i get to go out and smell and see new things.  My foster parents say that i have decent leash "manners". I've seen a cat a few times, and wasn't overly interested in it, but i have never lived with one, so I don't know how i would feel about that. I ended up in Colorado after someone dumped me in a very rural part of new Mexico.  A nice lady there found me and gave me food and water and shelter which was very nice, but she couldn't keep me so she found some nice people in Colorado to help me find a new forever home!  If i sound like the kind of dog you would like to hang out with fill out the application below and be sure to mention my name! If you are interested in fostering or adopting Mortimer, please fill out an adoption application at gotdrool.org

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Search for a Mastiff puppy or dog

Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Denver, Colorado.

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Mastiff puppies and dogs in nearby cities

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Related breeds in Denver, Colorado

Bullmastiffs in Denver, Colorado Neapolitan Mastiffs in Denver, Colorado Saint Bernards in Denver, Colorado

Mastiff shelters & rescues in Denver, Colorado

There are animal shelters and rescues that focus specifically on finding great homes for Mastiff puppies in Denver, Colorado. Browse these Mastiff rescues and shelters below.

Here are a few organizations closest to you:

Rescue

6 miles

Ace of Hearts - CO Transport Stop

711 Walnut St, Boulder, CO 80203

Pet Types: dogs

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Shelter

7.8 miles

Foothills Animal Shelter

580 McIntyre St., Golden, CO 80401

Pet Types: cats, birds, dogs, rabbits, reptiles, small animals

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Rescue

15.9 miles

Big Dogs Huge Paws, Inc

PO Box 460699, Aurora, CO 80046

Pet Types: dogs

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Looking for a specific shelter or rescue?

If you're not seeing what you're looking for, try our shelter and rescue search. We have more than 17,000 organizations in our database with furry pals waiting for a new home!

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

We've got all the info you need on adopting and caring for a Mastiff puppy. Check out the links below for everything you ever wanted to know about Mastiff puppies and adults.

Mastiff basics

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Where do Mastiffs come from? How many types of Mastiffs are there? From the history of the breed to question about average height, weight and size, brush up on these basic facts about the Mastiff.

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