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.

Adonis

Mastiff

Male, Young

Fremont, CA

Size

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

Details

Good with kids, Good with dogs, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

His birthday is December 22, 2025. He is a Mastiff × Doberman × American Staffordshire Terrier mix. He is a wonderful, loving puppy who is great with people and other dogs, but he does need a lot of attention and has some separation anxiety.He had parvo as a puppy but was treated and fully recovered. He is healthy now, but he does need his parvo booster shot one last time We absolutely love him and this is a very difficult decision. Unfortunately, I’m moving and starting college, and I’m no longer able to give him the time, attention, and care he deserves. We just want to find him a loving home where he will be happy, cared for, and given the attention he needs

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Romeo

Mastiff

Male, 7 yrs 6 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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Patty

Mastiff Pit Bull Terrier

Female, Adult

Sunnyvale, CA

Size

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

Details

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

Story

Personality: sweet, gentle, cautious âââBreed: mastiff/pit mix Age: est 1 year ââWeight: 60 lbs ââSex: female Great with dogs big and small Gentle, quiet girl A little cautious in new situations Loves to carry around her toys Learning about the leash Doing well with crate training No accidents thus far 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. October 30, 2026, 1:46 pm

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Lila

Mastiff Mixed Breed (Large)

Female, 2 yrs 8 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 Gilroy, CA Apply to adopt Lila: www.cabullyrescue.org/adopt

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Rose

Mastiff Mixed Breed (Large)

Female, 1 yr 4 mos

Pleasanton, CA

Size

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

Details

Good with dogs, Spayed or Neutered,

Story

MEET ROSE! We rescued Rose from euthanasia at the Stockton Shelter because we knew this super sweet and beautiful girl deserved her chance at Life 2.0. Rose is a stunning 1½–2-year-old, 60–70 lb Pit/Mastiff mix with beautiful dark brindle markings. She takes a few minutes to warm up, but once comfortable, she’s incredibly sweet, affectionate and loves to cuddle. -Tested great with dogs off leash at the shelter -Dog neutral at boarding and played off leash with -CBR Kate at the rec center -Comfortable with men & women -Crate trained & improving on leash -Spayed Rose is currently with our friends at RFRD Academy in San Jose and is ready for a FOSTER HOME to help her build confidence and prepare for forever! If you can foster Rose, please fill out our application; https://www.cabullyrescue.org/volunteer

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Winona

Mastiff Cane Corso

Female, 6 yrs 7 mos

Pleasanton, CA

Size

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

Details

Good with dogs, House-trained,

Story

This stunning Mastiff mix came to the Oakdale Animal Shelter after being heartbreakingly dumped skinny, scared, and suffering from painful ear issues. Winona is around 5–6 years old and everything we love about the Mastiff breed. She can be nervous and skittish at first, but once she knows she’s safe, she is incredibly loyal, loving, and devoted 🥹❤️ Winona is a calm, quiet girl who is wonderful in her crate, loves affection, and is very food motivated. She isn’t looking for a wild, busy life she just wants a safe, peaceful home and someone she can trust. She is good with other calm and neutral dogs, she’s not looking to be playful at this time. 📍 Winona is currently in Oakdale, CA and would LOVE a foster-to-adopt home or an adopter ideally with someone familiar with Mastiffs and willing to give her the time she needs to settle in and show you who she really is. 🏡 You were discarded once, sweet girl. Never again Winona. You deserve the very best. 🥹❤️

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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