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Mastiff puppies and dogs in Fountain Valley, California

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

Adopt a Mastiff near you in Fountain 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 Fountain Valley, California

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

Mastiff

Male, 2 yrs
Huntington Beach, 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
🥹 Henri will melt your heart! 😌 He's a mellow, loving soul! 😍 He'll snuggle up at your side! ☺️ He just wants your love and affection! ❤️ If Henri is too sweet to pass up, please click here to apply: https://www.treatpetrescue.org/adopt

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We'll also keep you updated on Edam's adoption status with email updates.
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Edam

Mastiff

Male, Adult
Newport Beach, 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
This is a courtesy post on behalf of our partners at Maui Humane Society. Edam is available for adoption and can fly ANYWHERE Hawaiian or Alaska Airlines flies. If you are interested in adopting Edam, please contact us and we will put you in touch with the appropriate contacts at Maui Humane! My name is Edam! The Coast Guard found me at the park, I'd say it was a daring rescue at sea but in actuality I was just lounging on the grass. I'm Edam, a 5-year old boy who's seemingly had a rough past. See I was found with a serious leg injury, a collar so tight I have indents in my neck and my jaw is a little crooked but despite all this I'm happy-go-lucky, very loving, optimistic and thrilled to be here. The shelter is like the Four Seasons compared to where I've been! I enjoy going on walks, chewing on bones, playing in the yard, munching on snacks and getting attention from my humans. I was named Edam because it's a popular cheese that everyone likes, just like me! Ok, I'm ready to close the book on the first chapter of my life and start a new one - will you please be in my story? MY FOSTER HOME SAYS THIS ABOUT ME: Edam is a good boy who just want to be loved, he's very affectionate, eager to please and loves to give sweet kisses. His favorite things are stuffed Kongs, cuddling on the bed, eating cheese and hot dogs, and jumping in anyone's open truck tailgate! He is housebroken, he gets along with our dog, he knows sit, crate and wait and he's a mellow guy. To get pets he likes to sit in the back seat of the car with his front paws on the ground and his big head on the center console.

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We'll also keep you updated on RECON's adoption status with email updates.
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RECON

Mastiff

Male, Adult
Tustin, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
December 17, 2025, 7:17 pm

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We'll also keep you updated on OBIE's adoption status with email updates.
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OBIE

Mastiff

Male, Adult
Tustin, CA
Size
(when grown) -
Details
Spayed or Neutered,
Story
January 4, 2026, 10:16 pm

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We'll also keep you updated on *CHAMP's adoption status with email updates.
Photo of *CHAMP

*CHAMP

Mastiff

Male, 9 mos
Long Beach, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
-

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We'll also keep you updated on Brody's adoption status with email updates.
Photo of Brody

Brody

Mastiff Pit Bull Terrier

Male, 4 yrs 8 mos
La Habra, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Good with dogs, Not good with cats, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Hi all! I’m Brody! I’m 4 years old and have been told I’m a total meat head who isn’t always aware just how big he is. I hear everyone calling me a handsome beefcake, which I can only imagine is a good thing. ☺️So far, everyone thinks I’m a mastiff/pit bull mix, hence the beefcake comments, but we’re not 100% sure as we haven’t done a DNA test. Regardless of my breed, I know I’m 100% handsome, because my foster mama tells me every day! 😍 I’ve got a big ole head, and a giant heart to match. 🫶 Not only am I easy on the eyes, but I’m also fully trained! I’ve got my basic obedience down, walk great on a leash and am crate trained. I love ALL dogs, even the littles, and my motto is #BALLISLIFE! I could play ball EVERY DAY and would love a home with a family who will play with me! But not to worry! I’m also perfectly content with some R&R at home and can be a lazy potato. My ideal home would be with a family who is patient and kind. I’ve had a lot happen to me in my 4 years on this earth, so I can be nervous meeting new people. However, I can also warm up really fast, and once you’re in, you’re in forever and we’ll be the bestest friends forever! 👯🤗 I’d also do best in a home with strong leaders, because let’s face it… I don’t like having to make choices. I mean, can ya blame me? Making decisions is a tiring thing, and why spend time doing that when I could be having fun! I’m fully vetted, neutered, current on all vaccines, microchipped and looking for my forever family.

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

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Mastiff puppies and dogs in nearby cities

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Related breeds in Fountain Valley, California

Bullmastiffs in Fountain Valley, California Neapolitan Mastiffs in Fountain Valley, California Saint Bernards in Fountain Valley, California

Mastiff shelters & rescues in Fountain Valley, California

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

Here are a few organizations closest to you:

Rescue

4 miles

TREAT Pet Rescue

Huntington Beach, CA 92646

Pet Types: cats, dogs

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Rescue

7.8 miles

Diamond's Friends Pet Rescue

Newport Beach, CA 92661

Pet Types: dogs

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Shelter

8.2 miles

OC Animal Care

1630 Victory Road, Tustin, CA 92782

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

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Shelter

12.2 miles

Long Beach Animal Care Services

7700 E Spring St., Long Beach, CA 90815

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

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Rescue

14 miles

Orange County Pit Bull Rescue

PO Box 3738, La Habra, CA 90632

Pet Types: dogs

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Rescue

15.7 miles

The Little Red Dog, Inc

Lake Forest, CA 92630

Pet Types: cats, dogs, rabbits, small animals

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Shelter

19.4 miles

Los Angeles County: Downey

11258 S. Garfield Ave., Downey, CA 90242

Pet Types: cats, dogs, rabbits, small animals

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Shelter

20.3 miles

Harbor Animal Care Center - Los Angeles Animal Services

957 North Gaffey Street, San Pedro, CA 90731

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

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Rescue

23.2 miles

Priceless Pets

2587 C Chino Hills Parkway, Chino Hills, CA 91709

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

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Shelter

23.6 miles

Los Angeles County: Carson/Gardena

216 W. Victoria St., Gardena, CA 90248

Pet Types: cats, dogs, 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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