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Mastiff puppies and dogs in Windsor, California

Looking for a Mastiff puppy or dog in Windsor, California? 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 Windsor, California Other pups in Windsor, California Search for a Mastiff puppy or dog near you Browse Mastiff puppies and dogs in nearby cities Browse related breeds in Windsor, California Mastiff shelters and rescues in Windsor, California Learn more about adopting a Mastiff puppy or dog

Adopt a Mastiff near you in Windsor, California

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 Windsor, California

These Mastiffs are available for adoption close to Windsor, California.
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Phoebe

Mastiff Cane Corso

Female, Young
Napa, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
Primary Color: Brown Secondary Color: White Weight: 82 Age: 1yrs 9mths 1wks

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Zion

Mastiff

Male, Young
Novato, CA
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
Story
(I'm being fostered in the East Bay)Meet Zion! At just 10 months old, handsome Zion is the absolute best of both worlds. He combines the loyal, intelligent heart of a Shepherd with the gentle, laid-back soul of a Mastiff. While he might still be growing into those big, goofy paws, Zion is a true gentle giant who is ready to bring a massive amount of love to his forever family.Because he is a newer arrival, we are still learning all about his unique personality and quirks every single day, but so far, he is completely stealing our hearts! This sweet boy is an absolute social butterfly and gets along wonderfully with other dogs, making him a fantastic option if you already have a resident pup looking for a friend. If you have room on your sofa and your heart for a big, affectionate lap dog who loves to snuggle, Zion is ready to claim his spot by your side. Come meet him today and watch his wonderful personality continue to unfold! Primary Color: Red Secondary Color: White Weight: 48 Age: 1yrs 0mths 0wks

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Olaf

Mastiff

Male, Adult
Vallejo, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
IMPORTANT NOTES! PLEASE READ:1. We may not receive anything via forms submitted through PetFinder or Adopt-A-Pet!2. Please submit the adoption interest application directly at our HSNB website!https://www.hsnb.org/dog-adoption-application3. If you do not receive the automated confirmation from us, email adoptions@hsnb.org -----Olaf - A Loyal Companion with a Big Heart 🤍🐾If you appreciate the depth and devotion of a large breed dog, Olaf might be your perfect match. This handsome 3½-year-old grey Mastiff weighs about 95 pounds and is looking for an experienced handler who understands and respects the unique needs of a powerful breed.When Olaf is in his comfort zone, his steady and affectionate nature truly shines. Staff have been incredibly impressed with his beautiful leash manners-he walks nicely and calmly, making outdoor time a pleasure. He is a loyal, sweet companion who thrives on routine and enjoys relaxing right by your side.Because of his size and protective instincts, Olaf requires an adult-only home with no children or cats. He is looking for a savvy, large-breed-experienced adopter who can provide consistent structure and leadership. Olaf has shown some selective reactivity in his foster home, particularly around men, and will need a patient, structured decompression period. An ideal home would be one with a confident, primary female handler or a household experienced in managing breed-specific boundary setting.With the right guidance and a dedicated owner who understands his signals, Olaf has the potential to be an incredibly devoted partner. He is big in size, deep in loyalty, and ready to find the structured, loving home he deserves. 🐶Adoption fee: $300 Primary Color: Grey Weight: 95 Age: 4yrs 0mths 0wks

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TINY

Mastiff

Male, 2 yrs 4 mos
Ukiah, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
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ANDRE

Mastiff

Male, 4 yrs 6 mos
Ukiah, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
-

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Photo of Busta Rhymes

Busta Rhymes

American Pit Bull Terrier Mastiff

Male, Young
Richmond, CA
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Not good with kids, Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Busta Rhymes aka Bubba is the biggest goofball XL Bully around! He is silly, clumsy and still very puppy-like! He can be a little mouth and barrel into you when he's feeling playful, so best to keep away from fragile folks like children or elderly. Luckily he walks nicely on leash and does really well in his crate. Busta can be nervous in new environments and meeting new people but if they have a friendly dog, then he's all about it. He has not shown any reactivity to other dogs, even the little barky ones. He rides well in the car too and could be a nice travel buddy. He is approximately 75lbs and 2 years old. Busta is healthy and handsome and would love to find a quieter home to settle into. California Pit bull Rescue is an official 501(c)(3) and requires an adoption application and $200 donation fee for all adoptions.August 13, 2026, 5:15 pm

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Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Windsor, California.

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Mastiff puppies and dogs in nearby cities

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Related breeds in Windsor, California

Bullmastiffs in Windsor, California Neapolitan Mastiffs in Windsor, California Saint Bernards in Windsor, California

Mastiff shelters & rescues in Windsor, California

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

Here are a few organizations closest to you:

Shelter

33 miles

Napa County Animal Shelter

942 Hartle Court, Napa, CA 94559

Pet Types: cats, birds, dogs, farm animals, horses, rabbits, small animals

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Shelter

36.5 miles

Marin Humane

171 Bel Marin Keys Blvd., Novato, CA 94949

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

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Shelter

43.2 miles

Humane Society of the North Bay

1121 Sonoma Blvd., Vallejo, CA 94590

Pet Types: cats, dogs

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Shelter

48.1 miles

Mendocino County Animal Care Services Ukiah Shelter

298 Plant Road, Ukiah, CA 95482

Pet Types: cats, birds, dogs, farm animals, horses, rabbits, small animals

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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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