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Mastiff puppies and dogs in Livermore, California

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

Adopt a Mastiff near you in Livermore, 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 Livermore, California

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

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 She-Ra's adoption status with email updates.
Photo of She-Ra

She-Ra

Mastiff

Female, 5 yrs
Dublin, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Shots are up-to-date,
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.
Photo of May May

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

PLYMOUTH

Mastiff Basset Hound

Male, 2 yrs 1 mo
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 Livermore, California.

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Mastiff puppies and dogs in nearby cities

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Related breeds in Livermore, California

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

Mastiff shelters & rescues in Livermore, California

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

Here are a few organizations closest to you:

Rescue

11.4 miles

Tri-Valley Animal Rescue

PO Box 11143, Pleasanton, CA 94588

Pet Types: cats, dogs

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Rescue

11.4 miles

California Bully Rescue

Pleasanton, CA 94588

Pet Types: dogs

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Shelter

13 miles

East County Animal Shelter

4595 Gleason Drive, Dublin, CA 94568

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

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Shelter

24.2 miles

City of Stockton Animal Shelter

1575 S. LINCOLN ST, STOCKTON, CA 95206

Pet Types: cats, dogs, rabbits

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Rescue

29.9 miles

Bamm San Jose, Ca

San jose, CA 94088

Pet Types: dogs

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Rescue

30.3 miles

Silicon Valley Animal Rescue

Palo Alto, CA 94303

Pet Types: dogs

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Shelter

30.9 miles

Ripon Animal Service

444 Doak Blvd, Ripon, CA 95366

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

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Shelter

31.7 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

33.7 miles

Lodi Animal Services

1345 W. Kettleman Lane, Lodi, CA 95242

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

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Shelter

35.7 miles

Stanislaus Animal Services Agency

3647 Cornucopia Way, Modesto, CA 95358

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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