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Mastiff puppies and dogs in San Clemente, California

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

Adopt a Mastiff near you in San Clemente, 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 San Clemente, California

These Mastiffs are available for adoption close to San Clemente, California.
We'll also keep you updated on Moose (Courtesy Post) - Adopt Me!'s adoption status with email updates.
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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

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We'll also keep you updated on Dudley-Special Needs - Adopt Me!'s adoption status with email updates.
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Dudley-Special Needs - Adopt Me!

Mastiff Labrador Retriever

Male, Adult
Lake Forest, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Good with cats, House-trained, Spayed or Neutered,
Story
Dudley born in 2023 is a sweet, affectionate boy weighing around 65 lbs. Partially blind and deaf, he doesn’t let that slow him down. He walks nicely on leash and just needs gentle guidance to avoid obstacles — if he loses track, he’ll give your leg a soft “bonk” to reorient himself.Dudley enjoys short walks, stuffed toys, and being outside. After a 20-minute stroll, he’s ready to chill for the rest of the day. He lets you know when he needs to potty and loves foraging for treats as enrichment.He’s social with other dogs (especially if they make physical contact), and he’s currently thriving in a foster home with other dogs, cats, and kids. Dudley also responds to touch cues — a double tap on his bottom means “sit.”Dudley is looking for a patient, loving home to guide him safely and show him how wonderful life can be!February 4, 2026, 9:11 pm

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We'll also keep you updated on Zuni & Hopi's adoption status with email updates.
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Zuni & Hopi

Mastiff Great Pyrenees

Male, Adult
Lake Elsinore, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Not good with kids, Not good with dogs, Not good with cats, House-trained, Shots are up-to-date,
Story
Zuni and Hopi are litter mates. They have been together since birth. They must be adopted together. Zuni is the brindle boy (neutered) and Hopi is the black girl (not spayed). They are mastiff/Great Pyrenees mix. They are both very sweet and friendly with humans (adult). Zuni is very energetic while Hopi is more relaxed. Hopi is very affectionate and will lick your face off if you let her. Zuni is an excellent guard dog. They are 4. Ive had the both since they were 8 weeks. It pains me to have to rehome them but the reason I need to is because I have realized they are not good with small children. I just welcomed a baby into my family and i cannot trust them around my infant. Zuni and Hopi NEED LAND and a family with no small children. No apartments or small backyards. They love to run. Again they are wonderful dogs, just not trustworthy around small children.

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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 13, 2026, 9:14 pm

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

HOWARD

Mastiff

Male, Adult
Tustin, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
February 23, 2026, 9:08 pm

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

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Mastiff puppies and dogs in nearby cities

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Related breeds in San Clemente, California

Bullmastiffs in San Clemente, California Neapolitan Mastiffs in San Clemente, California Saint Bernards in San Clemente, California

Mastiff shelters & rescues in San Clemente, California

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

Here are a few organizations closest to you:

Rescue

14.5 miles

The Little Red Dog, Inc

Lake Forest, CA 92630

Pet Types: cats, dogs, rabbits, small animals

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Shelter

22.6 miles

OC Animal Care

1630 Victory Road, Tustin, CA 92782

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

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Shelter

23.3 miles

Animal Friends of the Valleys

33751 Mission Trail, Wildomar, CA 92595

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

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Rescue

23.3 miles

All Paws K9 Rescue

Winchester, CA 92595

Pet Types: cats, dogs, horses

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Rescue

30.5 miles

Angel Dog Alliance, NFP (CA)

Temecula, CA 92591

Pet Types: dogs

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Shelter

37.9 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

38 miles

Priceless Pets

2587 C Chino Hills Parkway, Chino Hills, CA 91709

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

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Rescue

38.3 miles

Orange County Pit Bull Rescue

PO Box 3738, La Habra, CA 90632

Pet Types: dogs

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Shelter

39.5 miles

Riverside County Animal Control - Riverside Shelter

6851 Van Buren Blvd, Jurupa Valley, CA 92509

Pet Types: cats, dogs

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Shelter

39.7 miles

San Diego Humane Society - Escondido Campus

3500 Burnet Drive, Escondido, CA 92027

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