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

Adopt a Mastiff near you in Firestone, 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 Firestone, Colorado

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

Kazak

Mastiff

Male, 6 yrs

Mead, CO

Size

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

Details

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

Story

Meet Kazak — the gentle giant with the world’s floppiest tongue and a heart just as big. At 7 years old, this handsome mastiff has mastered the perfect balance of playful goofball and professional nap enthusiast. Toss him a toy and he’s happy to join the fun, but give him a comfy bed (or couch…or rug…or basically any soft surface) and he’ll happily snooze the afternoon away. Kazak absolutely adores other dogs and is wonderful with kiddos, making him an easy addition to a lucky family looking for a laid-back best friend. His signature feature? A tongue that’s approximately 6 inches too long for his mouth and permanently hanging out the side in the most charming, slobbery way possible. It’s impossible not to smile when you see him. Sadly, Kazak recently lost his home through no fault of his own, and now he’s hoping to find a soft place to land for his golden years. He’d love a retirement-style home with plenty of cozy lounging spots, lots of love, and minimal stairs for those big mastiff joints. In return, he promises endless companionship, gentle affection, and daily laughs courtesy of that wonderfully ridiculous tongue. Kazak is being fostered in Thornton, Colorado. *We require all adopters to come to Colorado to adopt. *We do not transport dogs.* You can view this wonderful dog at https://www.milehighcanine.org/post/dogs/kazak/. You can apply for our wonderful dogs at https://www.milehighcanine.org/adopt/adoption-application/.

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Gumbo

Mastiff

Male, 1 yr 8 mos

Boulder, CO

Size

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

Details

Story

Handsome Gumbo! This sweet boy is searching for a new home, could he be the right one for you? Gumbo loves pets and people, but can get overwhelmed at times and will benefit from an adopter that can support him when he needs it! He has also enjoyed the company of other dogs and might do well in a multi-dog home. At this time, HSBV will only rehome him to a family either without children or with children over the age of 10.

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Uma

Mastiff

Female, Senior

Greeley, CO

Size

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

Details

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

Story

Uma is an approximately 9-year-old Mastiff mix with the gentlest heart. She is a giant cuddle bug who believes she is a lap dog and loves nothing more than being close to her people. Uma is sweet, calm, and incredibly affectionate. Uma was adopted as a rescue, and her early life was difficult. Because of past trauma, she can become reactive on walks, but with a proper harness and mindful handling she does very well. She has lived peacefully with dogs, cats, and children of all ages, including babies, whom she absolutely adores. Slow introductions to new animals may help her feel safe, but she has never harmed a person. Mastiffs have relatively short lifespans, and our greatest hope is to find Uma a loving home where she can spend her senior years surrounded by comfort, affection, and family.

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Special Needs

Sabrina

Mastiff American Bulldog

Female, 7 yrs 8 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

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. ********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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NAMORA

Mastiff

Female, Young

Denver, CO

Size

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

Details

Spayed or Neutered,

Story

May 26, 2026, 7:30 pm

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Mastiff puppies and dogs in Firestone, Colorado

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Adopt a Mastiff near you in Firestone, 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 Firestone, Colorado

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

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Firestone, Colorado

Mastiff shelters & rescues in Firestone, Colorado

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics