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Mastiff puppies and dogs in Fairfax, California

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

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Adopt a Mastiff near you in Fairfax, 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 Fairfax, California

These Mastiffs are available for adoption close to Fairfax, California.
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ARETHA

Mastiff

Female, 5 yrs
Martinez, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
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Photo of Sky

Sky

Mastiff

Female, 8 yrs
Petaluma, CA
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
Sky is a sweet, gentle, 8-year-old Mastiff mix who was found as a stray in Tehama County and spent 2 months in their shelter. We are so glad she found her way to Lily’s Legacy. Sky loves to romp the property where she is being fostered followed by a nice long nap. She is adorable as she shows you her sit, shake and down follow by a “please rub my belly”. She also loves to play with stuffies and balls, and is learning the ins and outs of fetch. You will often find her with her favorite toy in her mouth which she will proudly show you. Sky lives with 4 other dogs in her foster home – 2 young, and 2 seniors. She is gentle and respectful with the seniors and keeps up with the energy of the young ones. We don’t know how she feels about cats. ​ Sky sleeps soundly through the night and is proving to be a wonderful houseguest. Her soft beautiful brindle fur and big soft squishy nose make her a wonderful cuddle buddy too. Unfortunately, she tested positive for heartworm so will be going through treatment over the next couple months. The good news is that the heartworm was diagnosed early, so we expect her to make a full recovery. Sky is doing very well in her foster home where she is getting lots of attention and TLC.
Photo of Theo

Theo

Mastiff

Male, Young
Oakland, CA
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
Theo was found as a stray. I got him as an emergency foster and he’s been such an easy to train, loving, timid boy. Shy at first and will hide until he knows the coast is clear, once ready to say hello he is goofy. He moves very slowly and hardly makes a sound around the house. If he sees or hears something suspicious he gives a deep, gentle bark to let you know. When it’s dinner time you get to see how he bucks like a bronco before he sits politely and waits for the, ok, to eat. At 2 years old and 116lbs he still has a bit of growing to do. He has had absolutely no issues in the last year I’ve had him. He gets along with all the dogs and lets you bath him and clip his nails with no fuss. Large breeds like him take longer to mature so even though he is technically an adult, he’s still a big baby that needs guidance to build confidence. Looking for a perfect home should be easy. He loves cuddles, treats, and going out for ‘sniffaris’
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Photo of Mr. Potato Head

Mr. Potato Head

Mastiff

Male, Young
Oakland, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Declawed, Spayed or Neutered,
Story
I am at Oakland Animal Services in kennel Dog C:2February 16, 2025, 3:45 pm
Photo of Bella

Bella

Mastiff Basenji

Female, Adult
Moraga, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Not good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Bella is a 5YO Mastiff Mix. She is a big girl, but incredibly gentle with people and kids. She is always excited and eager to give you a kiss, a paw, or a hug! She sometimes doesn't realize how big she is though, so you'll need to be mindful that if you're not expecting Bella's love, she might sweep you off your feet! Bella is housebroken and typically stays in one room when left alone at home. When not out on a walk, Bella will spend her day sleeping next to you. She does love to fetch ball though, play tug of war, or chew on a good toy. Oh and don't forget belly rubs and but scratches. She goes crazy for those! Bella has unfortunately grown out of liking other dogs. She's never hurt another, but when walking Bella, it's best to cross the street if another dog is near. Treats are also a great distraction! The best fit for Bella would be a home with older kids, and an owner who has time to give her long walks.
Photo of Tango

Tango

Mastiff Black Mouth Cur

Male, Adult
Santa Rosa, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
Tango is an 83lb goof ball who is looking for an active home to match his exuberant personality! This big Mastiff mix is super food-motivated, making training sessions both fun and productive. He's eager to learn, so continued training will help him shine even more. Tango would thrive in a home that can keep up with his playful spirit and give him plenty of opportunities for exercise and adventures. If you're looking for a loyal, fun-loving companion who's ready to join in on the action, Tango is your guy! Call 707-542-0882 to meet Tango. Primary Color: Fawn Secondary Color: Black Weight: 37.7 Age: 2yrs 2mths 0wks

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Mastiff shelters & rescues in Fairfax, California

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

Here are a few organizations closest to you:

Shelter

22.5 miles

Contra Costa Animal Services Martinez

4800 Imhoff Place, Martinez, CA 94553

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

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Rescue

23.8 miles

Lily's Legacy Senior Dog Sanctuary

PO Box 751002, Petaluma, CA 94975

Pet Types: dogs

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Shelter

24.6 miles

Oakland Animal Services

1101 29th Ave, Oakland, CA 94601

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

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Shelter

30.6 miles

Humane Society of Sonoma County

5345 Hwy 12 West, Santa Rosa, CA 95407

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

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Rescue

30.6 miles

Joybound People and Pets

2890 Mitchell Drive, Walnut Creek, CA 94598

Pet Types: cats, dogs

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Shelter

35.8 miles

Sonoma County Animal Care and Control

1247 Century Court, Santa Rosa, CA 95403

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

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Shelter

36.9 miles

Solano County Animal Care Services

2510 Clay Bank Rd., Fairfield, CA 94533

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

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Rescue

41.7 miles

Wine Country Animal Lovers

PO Box 3, Calistoga, CA 94515

Pet Types: cats, dogs

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Rescue

43.7 miles

Love & Second Chances

San Ramon, CA 94582

Pet Types: dogs

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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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