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Mastiff puppies and dogs in Fremont, California

Looking for a Mastiff puppy or dog in Fremont, California? Adopt a Pet can help you find an adorable Mastiff near you.

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Adopt a Mastiff near you in Fremont, California

These Mastiffs are available in Fremont, California.
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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

Or, how about these Mastiffs in cities near Fremont, California

These Mastiffs are available for adoption close to Fremont, California.
Photo of Adonis

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
Photo of Romeo

Romeo

Mastiff

Male, 7 yrs 5 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.
Photo of Lila

Lila

Mastiff Mixed Breed (Large)

Female, 2 yrs 6 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
Photo of Rose

Rose

Mastiff Mixed Breed (Large)

Female, 1 yr 3 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
Photo of Kate

Kate

Mastiff Mixed Breed (Large)

Female, 1 yr 3 mos
Pleasanton, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered,
Story
MEET KATE! A LITTLE SHY, A LOT SILLY, AND 100% WORTH GETTING TO KNOW! 💕 Kate is the kind of girl who may take a minute to warm up… but once she decides you’re safe, congratulations—you’ve officially been chosen. 🥹 ❤️ And Kate does NOT take her job as your loyal sidekick lightly! This beautiful girl is still growing into her body and outgrowing her puppy stage, which means she’s got a little bit of awkward teenager energy going on. 😂 She may initially be reserved in new situations, but give her a little time and her silly, happy personality comes bursting out. Once she trusts you, she is incredibly affectionate, devoted, and will happily follow her favorite human from room to room like a furry little security detail. 👀 🚗 Road trip queen: Kate travels like a DREAM. Most of the time you’ll find her curled up in a little ball, snoozing away while you run errands. Basically, she’s the perfect passenger and has already mastered the art of “Are we there yet?” by simply sleeping through the entire trip. 😂 🐶 Dog social butterfly: Kate has been great with small dogs, big dogs, and groups of dogs! She has excellent doggy social skills and quickly figures out who wants to PLAY. She loves a good game of chase, being chased, and the occasional friendly boxing match. 🥊😂 She can play a little rough, though, so her ideal doggy friends will appreciate her enthusiastic wrestling style. And when playtime is over? She LOVES snuggling up next to another dog for a cozy nap. 🥰 👨 Men: Kate can be a little unsure around men at first, but she has made wonderful progress in her foster home and has learned that the boys aren't so scary after all. She just needs someone willing to let her build that confidence at her own pace. 🐦 Cats & critters: Kate hasn't shown any prey drive and doesn't bother the foster home's pet birds, but she hasn't been tested living with cats yet. 🏡 Home life: Kate sleeps peacefully in her crate all night and even puts herself to bed! She knows when it's bedtime and happily heads into her crate on her own⭐️ Appy to adopt Kate! www.cabullyrescue.org/adopt Fostered in Los Gatos 1-2 years old 65-70lbs
Photo of Winona

Winona

Mastiff Cane Corso

Female, 3 yrs 6 mos
Pleasanton, CA
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, House-trained,
Story
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Related breeds in Fremont, California

Mastiff shelters & rescues in Fremont, California

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

Here are a few organizations closest to you:

Rescue

9.6 miles

Silicon Valley Animal Rescue

Palo Alto, CA 94303

Pet Types: dogs

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Rescue

11.3 miles

California Bully Rescue

Pleasanton, CA 94588

Pet Types: dogs

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Rescue

17.2 miles

Rocket Dog Rescue

3561 Foothill Blvd, Oakland, CA 94601

Pet Types: dogs

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Shelter

17.6 miles

Friends of the Alameda Animal Shelter

1590 Fortmann Way, Alameda, CA 94501

Pet Types: cats, dogs, rabbits, small animals

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Shelter

23.8 miles

San Jose Animal Care Center

2750 Monterey Highway, San Jose, CA 95111

Pet Types: cats, dogs, rabbits, small animals

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Shelter

29.8 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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Rescue

31.5 miles

K9 Paw Print Rescue

P.O. Box 9354, Pittsburg, CA 94565

Pet Types: dogs

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Shelter

35.8 miles

City of Tracy Animal Services

2375 Paradise Ave., Tracy, CA 95304

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

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Shelter

46 miles

City of Stockton Animal Shelter

1575 S. LINCOLN ST, STOCKTON, CA 95206

Pet Types: cats, dogs, rabbits

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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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