Mastiff Adoption in Rio Vista, CA: Mastiff Puppies for Sale in Rio Vista, CA

Adopt a Mastiff near you in Rio Vista, 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 Rio Vista, California

These Mastiffs are available for adoption close to Rio Vista, California.

Sully

Mastiff Cane Corso

Male, Adult

Pittsburg, CA

Size

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

Details

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

Story

Meet Sully! Looking for a giant lap dog, BFF, and big drooly shadow who wants to go everywhere with you? Sully might be your guy.Sully is a 6 ish year old Mastiff, 135lbs ish, easy going and sweet as pie. He has one good eye, the 'good eye' had cherry eye repair on it but it may pop out again, otherwise he is doing great. Personality: Sully is a gem! He's the definition of a social butterfly- incredibly friendly and affectionate, just loves being right by his person's side.Things he loves: Car rides, little adventures, walks, just being part of your everyday life. He is very much a 'where are we going?' kind of dog.Potty trainedCrate trainedSully will go into a crate, but it definitely isn't his favorite place to be. He would much rather be hanging out with you.Other dogs: Sully is very social and friendly w/ other friendly dogs. He would likely do well with another chill, friendly dog who matches his easygoing energy.Cats: Sully currently lives well w/ a confident cat. With a proper intro he should do ok living with cats.Kids: Sully is a big guy! He can absolutely knock over small kids. Ideally best w/ older kids comfortable around giants.Quirks: Despite his size, Sully is pretty convinced he is lap-dog sized. He would happily spend his whole day following you around, leaning on you, and being your oversized drooly shadow.Ideal home: Sully would thrive with someone comfortable with giant breeds who understands the importance of keeping a big guy's joints safe and their maintenance and costs. He's already ramp trained for getting in and out of the car and would love someone who wants to bring him along rather than leave him behind. Someone looking for a big goofy bff to tag along for coffee runs, walks, little adventures, and then come home and hang out on the couch. Sully really just wants to be included in life, and honestly, with that big drooly face, it's pretty hard not to include him. All K9ppr dogs are fixed, microchipped, vaccinated etc prior to adoption. #bayareadogrescue #mastiffrescue #corsoPlease note-detailed adoption app required! We're looking for the right forever fit www.K9ppr.org October 5, 2026, 12:21 am

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Raven

Mastiff American Staffordshire Terrier

Female, Puppy

Lodi, CA

Size

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

Details

Spayed or Neutered,

Story

Raven is a beautiful 7-month-old Mastiff mix is a loving girl who is looking for her forever home. At 50 pounds currently, she is expected to grow to around 80 pounds, making her a wonderful large-breed companion. She has a sweet, affectionate personality and is eager to cuddle and play. Raven is Blue and white. Birthday March 2026 * 🐶 7-month-old Mastiff mix * ⚖️ 50 lbs currently / approximately 80 lbs full grown * ❤️ Sweet and affectionate * 🏡 Crate trained * 🎓 Knows “sit” * 💉 Spayed * 💉 Vaccinations up to date * 🥰 No known allergies * 🌟 Ready for her forever family She’s still a puppy with plenty of growing and learning ahead of her, so she would thrive with a family willing to give her love, structure, training, and lots of patience. She has such a sweet face and a gentle presence

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KICKBOX

Mastiff

Male, 8 mos

Martinez, CA

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Story

This goofy, playful puppy loves people and other dogs alike. He’s happiest running and wrestling with his canine friends, and he enjoys plenty of attention from his handlers too. New people and environments can take a little getting used to, so he’ll do best with patient adopters who can help him build confidence while giving him plenty of opportunities for play, exploration, and rest.

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Drago

Mastiff

Male, 2 yrs 1 mo

STOCKTON, CA

Size

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

Details

Story

Drago is a big baby with a BIG personality! This super-squishy, cuddly boy is incredibly affectionate and loves being around his people. He’s good on leash and enjoys getting out to explore the world with his favorite humans. When he’s not busy exploring, Drago loves to play fetch and proudly carry his stuffies around. He’s playful, goofy, and full of personality — the kind of dog who will keep you smiling with his adorable antics and loving nature. Drago does have some important needs that his future family will need to understand. He resource guards his toys, so he will need an experienced handler who is comfortable managing and working with this behavior. Because Drago did not pass his playgroup testing, he will need to be the only dog in the home. Due to his resource guarding and overall handling needs, we also do not recommend Drago for a home with children. If you’re looking for a cuddly, playful, one-and-only companion with plenty of personality, Drago just might be your guy! ❤️

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Todd

Mastiff

Male, 10 mos

STOCKTON, CA

Size

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

Details

Story

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FIFI

Mastiff

Female, 8 yrs 1 mo

Sacramento, CA

Size

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

Details

Story

Fifi`s adoption fee has been paid for with a donation from a community memberFifi`s Doggie Day Out 9/20:We took Fifi to the Barn and there were lots of kids running around and who walked right by her. Fifi was so sweet and chill. She seemed perfectly happy around kids.We took Fifi to Natomas Regional Park and went on a long walk and enjoyed some time resting in the shade of a tree. Fifi was nervous when we picked her up from the shelter and during the ride to the park, but relaxed pretty much immediately at the park. She was great on the leash, completely nonreactive to geese and other dogs. It seems like she would enjoy other dogs. Fifi was sweet and cuddly and gentle. After the park, we walked around Home Depot. She did great - strolled right in and walked along nicely through the aisles. She was unphased by different noises and environments. Fifi did great in the car, and rode happily, alternating between relaxing and lying down, and sniffing out the window. After Home Depot we went to The Barn. Fifi was so relaxed and just chilled for hours with us. People walked close by, kids were running around, and other people had dogs there, and Fifi was perfectly content the whole time. She enjoyed a cheeseburger for lunch :) Fifi is an amazing dog! I suspect she would do well in a wide variety of homes.

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Mastiff puppies and dogs in Rio Vista, California

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Adopt a Mastiff near you in Rio Vista, 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 Rio Vista, California

These Mastiffs are available for adoption close to Rio Vista, California.

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Rio Vista, California

Mastiff shelters & rescues in Rio Vista, California

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics