Mastiff Puppies and Dogs in Colorado

Adopt a Mastiff near you in Colorado

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

Dolemite

Mastiff

Male, Senior

Boulder, CO

Size

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

Details

Good with dogs,

Story

Meet Dolemite, our gentle giant, a 10-year-old Mastiff who has known only one family his entire life—until they decided to move and left him at a high-kill shelter. Despite this abandonment, he holds no grudges and is ready to fill his new home with love and loyalty. This sweet boy is good with dogs of all sizes, a true gentle giant. He loves car rides and is a joy to be around. However, life hasn't been easy for him; he bears a large mass on his back left hip and callouses on his legs from being stuck sleeping outside. But fear not, because he's now in a loving foster home, where we're taking care of his medical needs and giving him the attention he deserves. We're looking for a special person or family who can offer Dolemite the forever home he truly deserves. If you're ready to open your heart to a senior in need, please fill out an application and give Dolemite the happy ending he's been waiting for.

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*CRICKET

Mastiff

Male, 3 mos

Brighton, CO

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Story

Meet Cricket, an adorable puppy with a heart full of love and a spirit brimming with joy. His playful nature is infectious, brightening up even the gloomiest of days. He loves a good game of fetch, his tail wagging with enthusiasm every time he sees a ball. He`s also a quick learner, always eager to master new tricks. Cricket`s energy is boundless, making him a perfect companion for those who love outdoor adventures. Despite his energetic demeanor, Cricket also has a sweet, gentle side. He loves cuddling up after a long day, his soft snores a comforting lullaby. But what truly sets Cricket apart is his resilience. He`s a fighter, overcoming every hurdle with grace and positivity. With his cheerful disposition and loving nature, Cricket would make a wonderful addition to any home. Adopt Cricket and let his love and liveliness fill your life with happiness and joy.

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*MILBURN PENNYBAGS

Mastiff/Great Dane

Male, 2 yrs

Brighton, CO

Size

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

Details

Story

Meet Milburn Pennybags, a charismatic and energetic adult dog. His friendly nature is contagious, making every interaction a delight. Milburn is not just sweet, he`s also an active fellow, always ready for a game of fetch or a brisk walk. His love for life is infectious, and his boundless energy will surely keep you on your toes. Despite his liveliness, Milburn is also a gentle soul who loves nothing more than a good cuddle. His sweet nature and energetic personality make him the perfect companion for any family. Milburn Pennybags is looking for a loving home where he can share his joy and enthusiasm. Adopting Milburn means gaining a loyal friend who will fill your days with happiness and laughter.

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Murphy

Mastiff

Male, 4 mos

Mead, CO

Size

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

Details

Good with kids, Good with dogs,

Story

Oh my, my, Murphy! Just look at this perfect, giant, boy! Murphy is approximately 3.5-4 months old and he’s already over 40 lbs. He’s smart as whip (knows multiple commands already), plays very well with other dogs yet doesn’t incessantly bug them, does well in the car, good on leash, and the list goes on! Murph sleeps with his foster mom and he’s quiet all night – minus some snoring, of course. He’s doing quite well with his house training but firmly believes crates are for peasants and he will not tolerate being put in one. 😳. Good thing he’s the goodest boy! Murphy is in foster in Parker, 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/murphy-2 You can apply for our wonderful dogs at https://www.milehighcanine.org/adopt/adoption-application/.

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Sweetie

Mastiff/Labrador Retriever

Female, Young

Fort Collins, CO

Size

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

Details

Good with kids, Good with dogs, House-trained,

Story

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!  May 8, 2024, 5:33 pm

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Stella

Mastiff/St. Bernard

Female, Young

Fort Collins, CO

Size

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

Details

Good with kids, Good with dogs,

Story

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!  May 8, 2024, 5:33 pm

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

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Adopt a Mastiff near you in Colorado

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

Search for a Mastiff puppy or dog