Bullmastiff puppies and dogs in Fort Collins, Colorado

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

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Adopt a Bullmastiff near you in Fort Collins, Colorado

We don't see any Bullmastiffs available for adoption right now, but new adoptable pets are added every day. Try a different search below!

These pups are in Fort Collins, Colorado too!

Below are our newest added Bullmastiffs available for adoption in Fort Collins, Colorado. To see more adoptable Bullmastiffs in Fort Collins, Colorado, use the search tool below to enter specific criteria!
We'll also keep you updated on Ombre's adoption status with email updates.
Photo of Ombre


Mastiff Boxer

Male, 2 yrs 5 mos
Fort Collins, CO
(when grown) Large 61-100 lbs (28-45 kg)
Spayed or Neutered,
This pups adoption fee has been partially sponsored by All Aboard or an All Aboard partner! The new adoption fee is reflected on the profile. Ombre is big guy with a lot of love to give! He came to us with a few quirks that his foster has been helping him work through and he is constantly making progress! He does need an experienced adopter who will be dedicated to continued positive reinforcement training and ongoing socialization. He has come a long way since his arrival in January 2023 and needs the perfect partner in crime to help him continue making progress! Ombre can be a bit skittish with new sounds or unexpected movements and can resource guard at times. He is occasionally slow to warm up to new men and other dogs, but not consistently! He can get overwhelmed in new high-activity environments, so continued socialization is a must. Ombre is very loving and curious, and acts like he is his foster's shadow. This loving boy is a classic case of a dog who is worth the effort! With the right, experienced adopter who is committed to setting him up for success through continued training and socialization, Ombre will absolutely blossom into his adopter's most dedicated friend! He is house and kennel trained. Playgroup - ADOPTION FEE: $75 We are a foster-based rescue and do not generally have pups available to meet at our office except during adoption events on Saturdays. Interested in this pup? The first step is to complete our online application by clicking the "Apply for Adoption" button. Please note that we are only able to finalize adoptions at events for approved adopters. The earlier you apply, the better as it takes time to review and approve applications. We host adoption events almost every Saturday from 10:00am to 1:00pm at our rescue office (1721 W Harmony, unit 102, Fort Collins, Co 80526)! Check our Instagram and/or Facebook page for info on where we will be hosting adoptions this weekend! All Aboard Animal Rescue saves dogs and puppies from high-kill shelters in other states. These pups are brought to Colorado, where they are required to be spayed or neutered - breaking the cycle of unwanted litters of puppies who end up as strays! Please consider supporting us in this mission by adopting, fostering, volunteering, or donating.
We'll also keep you updated on Sweetie's adoption status with email updates.
Photo of Sweetie


Mastiff Labrador Retriever

Female, Young
Fort Collins, CO
(when grown) Large 61-100 lbs (28-45 kg)
Good with kids, Good with dogs, House-trained, Spayed or Neutered,
Meet Sweetie! She is a mastiff mix pup looking for her new family! Sweetie does amazing with other dogs and loves to play! She does well with people and kids too.  Sweetie is the perfect family dog just waiting for her family!  June 11, 2024, 6:15 pm
We'll also keep you updated on Stella's adoption status with email updates.
Photo of Stella


Mastiff St. Bernard

Female, Young
Fort Collins, CO
(when grown) Large 61-100 lbs (28-45 kg)
Good with kids, Good with dogs, Spayed or Neutered,
Hi! I'm Stella! I am a mastiff & St. Bernard mix pup and my birthday is in November of 2023.  I am very sweet, but I'm still very shy to show you.  I am settling into my foster home but I am ready to go home forever!  June 11, 2024, 6:15 pm

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Looking for a specific shelter or rescue?

There are often many great Bullmastiffs for adoption at local animal shelters or rescues. Click below to find a shelter or rescue in your area!

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

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

Bullmastiff basics

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

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