Mastiff Adoption in Pittsburg, CA: Mastiff Puppies for Sale in Pittsburg, CA

Adopt a Mastiff near you in Pittsburg, 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 Pittsburg, California

These Mastiffs are available for adoption close to Pittsburg, California.

Nami

Mastiff Rhodesian Ridgeback

Female, Adult

Vallejo, CA

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Spayed or Neutered,

Story

NOTE:Submit the adoption interest application directly at our HSNB website:https://www.hsnb.org/dog-adoption-applicationWe may not receive anything submitted through PetFinder or Adopt-A-Pet! If you do not receive confirmation from us, email adoptions@hsnb.org . -----Meet Nami, a beautiful Mastiff/Rhodesian Ridgeback mix with a heart of gold. When she first arrived at our shelter, Nami was a bit shy, taking her time to observe her new surroundings and the people around her. Once she got the hang of things, her true, affectionate personality became very apparent.Now, Nami has truly blossomed into a wonderful companion who clearly adores people. She enjoys a relaxed pace on her leash walks, taking everything in with a quiet demeanor, and is even open to making new dog friends. More than anything, Nami longs for a place where she can feel safe, secure, and cherished. She dreams of a loving home where she can offer endless affection and receive it in return. Nami's adoption fee is $350.https://youtube.com/shorts/tCoPkwAgl2M Primary Color: Brown Secondary Color: Brindle Weight: 82.5 Age: 2yrs 10mths 0wks

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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 $35, plus licensing (if applicable). Her spay surgery will be sponsored!

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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 $35, plus licensing (if applicable). Her spay surgery will be sponsored!

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Apollo

Mastiff

Male, Young

Castro Valley, CA

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Good with kids, Not good with cats, House-trained, Shots are up-to-date,

Story

Meet our sweet boy Apollo 🐾 Apollo just turned 2 years old on January 5, 2026. He is a loving, affectionate pup who adores belly rubs and enjoys spending time with his people. Apollo is well-mannered and knows basic commands such as sit, stay, lay down, and shake paws. We are heartbroken to say that we are looking for a new family for Apollo due to circumstances beyond our control—our landlord has required that we rehome him. This decision has not been easy, and our only wish is to find a home that will love and care for him just as much as we do. If you are willing to give Apollo a chance and provide him with a safe, loving forever home, please reach out. He truly deserves a family who will cherish him.

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She-Ra - ECAS

Mastiff Mixed Breed (Medium)

Female, 5 yrs 1 mo

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). The cost of her spay surgery is sponsored! ## See video of She-Ra at the end of the photo gallery! ## TVAR.org/find-your-pet-adopt/dogs-puppies/ 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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Rex

Mastiff Mixed Breed (Large)

Male, 1 yr 11 mos

Pleasanton, CA

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Good with dogs, House-trained, 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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Mastiff puppies and dogs in Pittsburg, California

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Adopt a Mastiff near you in Pittsburg, 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 Pittsburg, California

These Mastiffs are available for adoption close to Pittsburg, California.

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Pittsburg, California

Mastiff shelters & rescues in Pittsburg, California

Looking for a specific shelter or rescue?

Want to learn more about adopting a Mastiff puppy or dog?

Mastiff basics

Mastiff basics