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Mastiff puppies and dogs in Brentwood, California

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

Adopt a Mastiff near you in Brentwood, 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 Brentwood, California

These Mastiffs are available for adoption close to Brentwood, California.
We'll also keep you updated on She-Ra's adoption status with email updates.
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She-Ra

Mastiff

Female, 5 yrs
Dublin, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
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Story
She-Ra is a female Mastiff. She is approximately five years old, and currently weighs 93 pounds. She was brought to our shelter on 11/17/25 after being found in unincorporated Livermore. She hasn't been reclaimed by her previous person, so she's now looking for a new home! She has been vaccinated, and will be spayed and micro-chipped before going to her new home. Her adoption fee is waived this month and her spay surgery will be sponsored too! A dog licensing fee may still apply.

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

Mastiff

Female, 6 yrs
Dublin, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Shots are up-to-date,
Story
May May is a female Mastiff. She is approximately six years old, and currently weighs 80 pounds. She was brought to our shelter on 11/22/25 after being found in Castro Valley. She hasn't been reclaimed by her previous person, so she's now looking for a new home! She has been vaccinated, is micro-chipped, and will be spayed before going to her new home. Her adoption fee is waived this month, but her adopter will responsible for the cost of her spay surgery. A dog licensing fee may still apply.

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We'll also keep you updated on She-Ra - ECAS's adoption status with email updates.
Photo of She-Ra - ECAS

She-Ra - ECAS

Mastiff Mixed Breed (Medium)

Female, 5 yrs
Pleasanton, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
She-Ra was brought to our shelter on 11/17/25 after being found in unincorporated Livermore. She hasn't been reclaimed by her previous person, so she's now looking for a new home! Her adoption fee is $35, plus licensing (if applicable), plus the cost of her spay surgery. She-Ra’s Shelter ID# is 88279. She is an approximately 5-year-old, black, Mastiff mix. She currently weighs around 93 lbs. She has already been vaccinated and will be spayed and microchipped before going to her new home. She-Ra is located in kennel C-2. ** Age shown is an estimate only ** THIS IS A COURTESY POSTING If you are interested, please call the East County Animal Shelter at 925-803-7040 to see if this dog is still available.

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

Mastiff Mixed Breed (Large)

Male, 1 yr 10 mos
Pleasanton, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Meet Rex, our 98-lb gentle giant with a heart just as big as his blocky head. This stunning red Mastiff mix, just under 2 years old and already neutered, is the total package he is calm, polite, intelligent, and just the right amount of goofy. ✨ Why Rex is amazing: • Walks beautifully on leash • Knows “sit” and takes treats with a soft, gentle mouth • Affectionate once he warms up • Loves walks, lounging, and hanging with his people • May be cat workable with slow and proper intros 🐱❤️ In playgroups, Rex enjoys gentle play with both male and female dogs who don’t mind his big-dog enthusiasm. He thrives in a calm, structured home without too much chaos just a loving person or family who sees what a treasure he is. Neutered| 2 yrs old | 98 lbs | Mastiff Mix

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

Maymay - ECAS

Mastiff Mixed Breed (Medium)

Female, 6 yrs
Pleasanton, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Maymay’s Shelter ID# is 88332. She is an approximately 6-year-old, black, Mastiff mix. She currently weighs around 80 lbs. She has already been vaccinated and microchipped and will be spayed before going to her new home. Maymay is located in kennel B-5. Her adoption fee is $35, plus licensing (if applicable), plus the cost of her spay surgery. ## See video of Maymay at the end of the photo gallery! ## TVAR.org/find-your-pet-adopt/dogs-puppies/ ** Age shown is an estimate only ** THIS IS A COURTESY POSTING If you are interested, please call the East County Animal Shelter at 925-803-7040 to see if this dog is still available.

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

PLYMOUTH

Mastiff Basset Hound

Male, 2 yrs 2 mos
STOCKTON, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
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Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Brentwood, California.

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Mastiff puppies and dogs in nearby cities

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Related breeds in Brentwood, California

Bullmastiffs in Brentwood, California Neapolitan Mastiffs in Brentwood, California Saint Bernards in Brentwood, California

Mastiff shelters & rescues in Brentwood, California

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

Here are a few organizations closest to you:

Shelter

19.9 miles

East County Animal Shelter

4595 Gleason Drive, Dublin, CA 94568

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

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Rescue

20.3 miles

California Bully Rescue

Pleasanton, CA 94588

Pet Types: dogs

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Rescue

20.3 miles

Tri-Valley Animal Rescue

PO Box 11143, Pleasanton, CA 94588

Pet Types: cats, dogs

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Shelter

20.8 miles

City of Stockton Animal Shelter

1575 S. LINCOLN ST, STOCKTON, CA 95206

Pet Types: cats, dogs, rabbits

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Shelter

23.9 miles

Lodi Animal Services

1345 W. Kettleman Lane, Lodi, CA 95242

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

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Shelter

25.8 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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Shelter

32.1 miles

Humane Society of the North Bay

1121 Sonoma Blvd., Vallejo, CA 94590

Pet Types: cats, dogs

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Shelter

33.1 miles

Ripon Animal Service

444 Doak Blvd, Ripon, CA 95366

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

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Rescue

40.8 miles

Silicon Valley Animal Rescue

Palo Alto, CA 94303

Pet Types: dogs

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Shelter

40.8 miles

City of Elk Grove Animal Services

9150 Union Park Way, Elk Grove, CA 95624

Pet Types: cats, birds, dogs, 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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