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

Adopt a Mastiff near you in Newark, 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 Newark, California

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

ANGEL

Mastiff

Male, 6 yrs 2 mos

Fremont, CA

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Spayed or Neutered,

Story

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SIMBA

Mastiff

Male, 5 yrs 6 mos

Hayward, CA

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Story

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Romeo

Mastiff

Male, 7 yrs 3 mos

Palo Alto, CA

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Not good with dogs, Not good with cats, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Romeo is very sweet 6 year old boy but the vets think he may be younger. He would love to be a family dog and definitely wants to find his forever home, but can be protective of his people and his space. That being said once he knows you are part of the family he listens very well and knows many commands, sit, stay, down, shake, wait. He is slow to warm up to new people but once he has been introduced to you he is a gentle giant and big couch potato that loves to cuddle. He also really enjoys going for a ride in the car. It is not recommended to have young kids due to his size. He is good on the leash and knows many commands but needs someone that is not afraid of his size and can properly handle him. Experienced adopter with larger breeds is a must. No other dogs or animals in the household and not a good candidate for crates.

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Dozer

Mastiff

Male, Adult

San jose, CA

Size

(when grown) Med. 26-60 lbs (12-27 kg)

Details

Spayed or Neutered, Shots are up-to-date,

Story

Meet Dozer – Your Oversized Lap Dog! If you're looking for a gentle giant with a goofy personality, Dozer is your guy. This handsome Mastiff weighs in at around 100 pounds, but he's convinced he's the perfect size to curl up in your lap—and honestly, who are we to tell him otherwise? Dozer is deaf, but don't let that fool you. He's incredibly people-oriented, eager to connect, and quickly learns through hand signals, patience, and plenty of treats. In fact, he's highly treat motivated, making training both fun and rewarding. He's a lovable goofball who doesn't always know what to do with all those long legs, which only adds to his charm. While he can be a little awkward at times, he's not anxious—just a big, silly boy figuring life out one step at a time. Dozer enjoys the company of other dogs, adores people, and has a sweet, gentle nature that makes everyone fall in love with him. He's already neutered and ready to find a family that will appreciate his unique personality and endless affection. If you've been dreaming of a loyal best friend with a heart as big as his paws, Dozer is waiting to meet you. ##2498995##

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Rowan

Mastiff

Male, Young

Sunnyvale, CA

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Spayed or Neutered, Shots are up-to-date,

Story

Personality: playful, curious âââBreed: mastiff mix Age: est DOB 11/11/25 ââWeight: 70lbs and growing ââSex: male Rescued from Tehama County Large, clumsy boy Playful with other dogs, but doesn't always realize his size A little nervous in new situations Doing great with crate training No accidents inside so far Easy on leash Large dog experience a must Www.coppersdream.org If you are interested in adopting this dog please visit this link to get the adoption process started. We hold adoption events from San Francisco to the South Bay. Most dogs will be ready to go home the day of the adoption event. We accept credit cards and cash for our adoption fees. While adoption events are a great showcase for these amazing dogs, you don't need an adoption event to adopt a dog. Check out our adoptable pups, submit an application, and then meet them at their foster home! We try to post the dogs that are attending on Facebook before the event, please visit and like us on Facebook. To View other dogs up for adoption please visit our website. July 25, 2026, 5:56 pm

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Lila

Mastiff Mixed Breed (Large)

Female, 2 yrs 5 mos

Pleasanton, CA

Size

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

Details

Good with dogs, Spayed or Neutered,

Story

Lila is a beautiful Mastiff mix living her best life as our resident gentle giant and professional couch potato while she waits for her forever home 💛 This sweet girl is equal parts lover, snuggler, and car-ride breeze enthusiast. If you have a couch and a car window that rolls down halfway… congratulations, you already have two of Lila’s favorite things. With new people, Lila is a polite little introvert in a big dog body. She may play it cool at first, but once you pass her vibe check, she’ll wander over for a hand sniff and some gentle pets. Lila is still very much a baby brain inside a giant body, so she’s working on crate training, impulse control, and remembering that manners matter. She truly wants to be good… sometimes her dramatic side just makes a guest appearance. Structure, consistency, and a confident human are helping her improve every day. Lila is a mastiff mix, which means she’s a big girl with an even bigger heart. She can be a little unsure of herself at times, but with confident leadership and reassurance she settles in beautifully and bonds deeply with her people. Because of her size, puppy energy, and chase instincts, Lila is looking for a home without small children or small animals. 📍 Fostered in San Jose, CA Apply to adopt Lila: www.cabullyrescue.org/adopt

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Mastiff puppies and dogs in Newark, California

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Adopt a Mastiff near you in Newark, 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 Newark, California

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

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Newark, California

Mastiff shelters & rescues in Newark, California

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics