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Mastiff puppies and dogs in Mill Valley, California

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

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Adopt a Mastiff near you in Mill Valley, 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 Mill Valley, California

These Mastiffs are available for adoption close to Mill Valley, California.
We'll also keep you updated on BLUTO's adoption status with email updates.
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BLUTO

Mastiff

Male, 1 yr 3 mos
Pt. Richmond, CA
Size
(when grown) -
Details
Not good with kids, Not good with dogs, Not good with cats,
Story
Bluto is a confident, playful and affectionate boy with a heart as big as his 70-pound, all-muscle frame! He’s house trained and knows how to sit, and while he walks pretty well on leash, his fabulous foster is working with him on not pulling when something exciting grabs his attention. Bluto is a total lovebug adores being around people. He would happily cuddle up with you on the couch any chance he gets. He’s gentle when taking treats and doesn’t mind having his paws handled—making grooming and vet visits a breeze. He loves meeting new people and greets guests in the home with full body wiggles. So far in foster, he has done great with other large dogs who have calm demeanors. When playful dogs approach, he's eager to get involved but he's not quite sure exactly what to do. He takes human or dog direction well though, and will be a playful companion in no time! As he's a large boy who's still learning how to keep all four paws on the ground when he's excited, he would be best in a home with adults only or older kids. He means absolutely no harm, but could easily knock over small kids or anyone unsteady on their feet while he's working on this. If you’re looking for a strong, confident, and affectionate companion who just needs a little polishing, Bluto might be your perfect match, apply today to find out!
We'll also keep you updated on Koby's adoption status with email updates.
Photo of Koby

Koby

Mastiff Anatolian Shepherd

Male, Adult
Novato, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Not good with dogs, Not good with cats, Spayed or Neutered,
Story
Meet Koby, a young, sweet, and slightly shy Mastiff mix. He's a tender soul with a heart full of love to give. Though a bit reserved at first, Koby blossoms into a cuddly companion once he feels comfortable. His endearing shyness is a testament to his gentle nature. Koby's personality is like a puzzle, intriguing and rewarding to unravel. He enjoys quiet moments and the simple joy of companionship. Adopting Koby means gaining a loyal friend who will cherish your presence and add warmth to your life. With time, patience, and love, Koby will surely blossom into a constant source of joy and companionship. Primary Color: Yellow Secondary Color: White Weight: 94 Age: 3yrs 1mths 0wks
We'll also keep you updated on Theo's adoption status with email updates.
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, Not good with cats, 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’
We'll also keep you updated on Raver's adoption status with email updates.
Photo of Raver

Raver

Mastiff Pit Bull Terrier

Male, Young
Oakland, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Good with dogs, Not good with cats, Declawed, Spayed or Neutered,
Story
I am at Oakland Animal Services in kennel Dog Adoption:3Raver is a 2-year-old, 56-pound mastiff-pittie mix with a big heart and a playful spirit. His coat is like midnight—deep black with a quiet kind of beauty that catches the light just right. After a tough past marked by neglect, he's learning what it means to feel safe, cared for, and loved—and he's ready to find a home that will help him continue that journey. This strong, sweet boy has a goofy side that's impossible not to love. Toys? He'll entertain himself for ages. Treats? He's highly food motivated, which makes training and bonding all the more rewarding. He is eager to connect, to trust, and to be part of something stable and kind. Raver seems inexperienced with other dogs, so a solo-pet home is best unless his future family includes a confident, well-matched dog who can help show him the ropes through carefully managed introductions. He's looking for adopters who will see past where he came from and focus on where he's going—people who understand that healing takes time, and that love, structure, and treats go a long way. Raver is ready for a home that's as committed to him as he will be to them. He is a dog who's walked through darkness and is now ready to step into the warmth of a new beginning. If you're looking to give a dog a true second chance Raver is your guy! View this post on Instagram A post shared by Oakland Animal Services (OAS) (@oaklandanimalservices) May 10, 2025, 12:03 pm
We'll also keep you updated on Bologna's adoption status with email updates.
Photo of Bologna

Bologna

Mastiff

Female, Young
Oakland, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Not good with cats, Declawed, Spayed or Neutered,
Story
I am at Oakland Animal Services in kennel Dog H:6Have Mastiff experience? Bologna is a 2-year-old, 108-lb Mastiff girl with a gentle soul and a playful spark. With her mellow trot and sweet nature, she’s the perfect mix of calm and goofy. Calm on leash: Trots calmly on leash, pulling occasionally for a good sniff. Playful spirit: Loves to drop into big, exaggerated play bows and hold them, hoping for a playmate to join in! Toy fan: Likes squeaky toys—she’ll toss them around and entertain herself with joy. Loving and affectionate: Comes over for attention, leans in for pets, and may shower you with kisses. Well-mannered: Knows “sit” and takes treats gently like a true lady. Bologna would thrive with a well-matched dog friend or as a solo pup in a home that appreciates her calm, cuddly, and playful personality. Could she be your next best friend?May 13, 2025, 12:22 am
We'll also keep you updated on BELLA's adoption status with email updates.
Photo of BELLA

BELLA

Mastiff

Female, 3 mos
Martinez, CA
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Not good with kids, Not good with dogs, Not good with cats,
Story
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Mastiff shelters & rescues in Mill Valley, California

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

Here are a few organizations closest to you:

Rescue

9.4 miles

Milo Foundation

220 S Garrard Blvd, Pt. Richmond, CA 94801

Pet Types: cats, dogs

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Shelter

10.9 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

18.9 miles

Oakland Animal Services

1101 29th Ave, Oakland, CA 94601

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

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Shelter

20.2 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

21.2 miles

HELLA DAM BITCHES N QUEENS RESCUE

PACIFICA, CA 94044

Pet Types: cats, dogs

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Rescue

22.2 miles

North Bay Canine Rescue & Placement

PO Box 4522, Petaluma, CA 94955

Pet Types: dogs

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Shelter

31.6 miles

Hayward Animal Shelter

16 Barnes Ct, Hayward, CA 94544

Pet Types: cats, dogs, rabbits, small animals

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Shelter

35 miles

East County Animal Shelter

4595 Gleason Drive, Dublin, CA 94568

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

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Shelter

36.9 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

37.6 miles

Tri-Valley Animal Rescue

PO Box 11143, Pleasanton, CA 94588

Pet Types: cats, dogs

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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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