Adopt
Rehome
Menu Hamburger Icon

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.

Picture of Mastiff

Learn More:

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 RECON's adoption status with email updates.
Photo of RECON

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

Learn More

Small right facing arrow
We'll also keep you updated on OBIE's adoption status with email updates.
Photo of OBIE

OBIE

Mastiff

Male, Adult
Tustin, CA
Size
(when grown) -
Details
Spayed or Neutered,
Story
January 13, 2026, 9:14 pm

Learn More

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

*CHAMP

Mastiff

Male, 10 mos
Long Beach, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
-

Learn More

Small right facing arrow
We'll also keep you updated on *ROSCO's adoption status with email updates.
Photo of *ROSCO

*ROSCO

Mastiff Akita

Male, 3 yrs
Long Beach, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
-

Learn More

Small right facing arrow
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 9 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.

Learn More

Small right facing arrow
We'll also keep you updated on Moose (Courtesy Post) - Adopt Me!'s adoption status with email updates.
Photo of Moose (Courtesy Post) - Adopt Me!

Moose (Courtesy Post) - Adopt Me!

Mastiff

Male, Adult
Lake Forest, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, House-trained, Spayed or Neutered,
Story
This handsome big guy is Moose, a sweet 2-year-old pup tipping the scales at 97 lbs of love! Moose has had lots of training under his belt and is fully crate trained, walks beautifully on leash, and is great with other dogs.Moose is neutered, up-to-date on vaccines, and ready to find his forever home. While he’s made great progress, Moose is still a bit timid and sensitive, so he’s looking for a calmer household where he can continue to blossom at his own pace. Because of his gentle, shy nature, he’d do best in a home with older kids who understand how to give him space when he needs it.Moose would love a family who can provide a quiet, structured environment where he can feel safe, loved, and part of the pack. If you’re looking for a loyal, kind-hearted companion with a big heart (and paws to match!), Moose may be the one for you! Located in Los Angeles, CAJanuary 15, 2026, 9:23 pm

Learn More

Small right facing arrow

Search for a Mastiff puppy or dog

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

    an arrow icon
location arrow icon Current location
  • New York, NY
  • Los Angeles, CA
  • Houston, TX
  • Dallas, TX
  • Brooklyn, NY

Sorry, we can’t find that location! Please try again.

    Age
    an arrow icon

Mastiff puppies and dogs in nearby cities

Mastiff Puppies near me Mastiff in Alhambra, CA Mastiff in Aliso Viejo, CA Mastiff in Anaheim, CA Mastiff in Arcadia, CA Mastiff in Artesia, CA Mastiff in Azusa, CA Mastiff in Baldwin Park, CA Mastiff in Bell, CA Mastiff in Bellflower, CA Mastiff in Bell Gardens, CA Mastiff in Brea, CA Mastiff in Buena Park, CA Mastiff in Carson, CA Mastiff in Cerritos, CA Mastiff in Chino, CA Mastiff in Chino Hills, CA Mastiff in Claremont, CA Mastiff in Commerce, CA Mastiff in Compton, CA Mastiff in Corona, CA Mastiff in Costa Mesa, CA Mastiff in Covina, CA Mastiff in Cudahy, CA Mastiff in Culver City, CA Mastiff in Cypress, CA Mastiff in Dana Point, CA Mastiff in Diamond Bar, CA Mastiff in Downey, CA Mastiff in Duarte, CA Mastiff in El Monte, CA Mastiff in El Segundo, CA Mastiff in Fontana, CA Mastiff in Fullerton, CA Mastiff in Gardena, CA Mastiff in Garden Grove, CA Mastiff in Glendale, CA Mastiff in Glendora, CA Mastiff in Hawaiian Gardens, CA Mastiff in Hawthorne, CA Mastiff in Hermosa Beach, CA Mastiff in Huntington Beach, CA Mastiff in Huntington Park, CA Mastiff in Inglewood, CA Mastiff in Irvine, CA Mastiff in Laguna Beach, CA Mastiff in Laguna Hills, CA Mastiff in Laguna Niguel, CA Mastiff in Laguna Woods, CA Mastiff in La Habra, CA Mastiff in La Habra Heights, CA Mastiff in Lake Elsinore, CA Mastiff in Lake Forest, CA Mastiff in Lakewood, CA Mastiff in La Mirada, CA Mastiff in La Palma, CA Mastiff in La Puente, CA Mastiff in La Verne, CA Mastiff in Lawndale, CA Mastiff in Lomita, CA Mastiff in Long Beach, CA Mastiff in Los Alamitos, CA Mastiff in Los Angeles, CA Mastiff in Lynwood, CA Mastiff in Manhattan Beach, CA Mastiff in Maywood, CA Mastiff in Mission Viejo, CA Mastiff in Monrovia, CA Mastiff in Montclair, CA Mastiff in Montebello, CA Mastiff in Monterey Park, CA Mastiff in Newport Beach, CA Mastiff in Norco, CA Mastiff in Norwalk, CA Mastiff in Ontario, CA Mastiff in Orange, CA Mastiff in Palos Verdes Estates, CA Mastiff in Paramount, CA Mastiff in Pasadena, CA Mastiff in Perris, CA Mastiff in Pico Rivera, CA Mastiff in Placentia, CA Mastiff in Pomona, CA Mastiff in Rancho Cucamonga, CA Mastiff in Rancho Palos Verdes, CA Mastiff in Rancho Santa Margarita, CA Mastiff in Redondo Beach, CA Mastiff in Riverside, CA Mastiff in Rolling Hills Estates, CA Mastiff in Rosemead, CA Mastiff in San Clemente, CA Mastiff in San Dimas, CA Mastiff in San Gabriel, CA Mastiff in San Juan Capistrano, CA Mastiff in San Marino, CA Mastiff in Santa Ana, CA Mastiff in Santa Fe Springs, CA Mastiff in Seal Beach, CA Mastiff in Sierra Madre, CA Mastiff in Signal Hill, CA Mastiff in South El Monte, CA Mastiff in South Gate, CA Mastiff in South Pasadena, CA Mastiff in Stanton, CA Mastiff in Temple City, CA Mastiff in Torrance, CA Mastiff in Tustin, CA Mastiff in Upland, CA Mastiff in Villa Park, CA Mastiff in Walnut, CA Mastiff in West Covina, CA Mastiff in Westminster, CA Mastiff in Whittier, CA Mastiff in Yorba Linda, CA

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:

Shelter

8.2 miles

OC Animal Care

1630 Victory Road, Tustin, CA 92782

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

More an arrow icon

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

More an arrow icon

Rescue

14 miles

Orange County Pit Bull Rescue

PO Box 3738, La Habra, CA 90632

Pet Types: dogs

More an arrow icon

Rescue

15.7 miles

The Little Red Dog, Inc

Lake Forest, CA 92630

Pet Types: cats, dogs, rabbits, small animals

More an arrow icon

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

More an arrow icon

Rescue

23.2 miles

Priceless Pets

2587 C Chino Hills Parkway, Chino Hills, CA 91709

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

More an arrow icon

Rescue

24.6 miles

hazeleyesdogrescue/Puppyandpalsrescue

Los Angeles /Barstow, CA 90002

Pet Types: dogs

More an arrow icon

Shelter

25 miles

Corona Animal Shelter

1330 Magnolia Ave, Corona, CA 92879

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

More an arrow icon

Shelter

25.9 miles

Los Angeles County: Baldwin Park

4275 N. Elton, Baldwin Park, CA 91706

Pet Types: cats, dogs, rabbits, small animals

More an arrow icon

Rescue

26.4 miles

ADOGS(Adopt Dogs) - LA Transport

Torrance, CA 90503

Pet Types: dogs

More an arrow icon

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!

magnifying glass with cat and dog

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

clipboard with list

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.

Learn More an arrow icon