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

Adopt a Mastiff near you in Pleasanton, California

These Mastiffs are available in Pleasanton, California.

Carolina

Mastiff

Female, Young

Dublin, CA

Size

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

Details

Spayed or Neutered,

Story

Meet Carolina, a young Mastiff mix with a big presence and an even bigger heart. 🐾💛She may look large and mighty at first glance, but Carolina is currently approaching life with a bit of caution. The world can feel overwhelming sometimes, and she's still learning that it's a safe and welcoming place. The beautiful thing about Carolina? She wants to trust - and she does, quickly. With gentle reassurance and a steady hand, she melts right into her person.This sweet, smushy girl is full of quiet affection. Once she feels comfortable, she leans in for love, enjoys soft pets, and shows her tender, loyal nature. She's the kind of dog who will form a deep bond with her family and look to them for guidance and confidence. Primary Color: Red Secondary Color: White Weight: 59.5 Age: 1yrs 0mths 2wks

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

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

Carolina

Mastiff

Female, Young

Dublin, CA

Size

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

Details

Spayed or Neutered,

Story

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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, Good with dogs, 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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Adam

Mastiff Mixed Breed (Medium)

Male, 1 yr 10 mos

Oakland, CA

Size

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

Details

Spayed or Neutered,

Story

Adam is an 80-pound silly, calm and cuddly boy doing so well with his amazing\ foster who says her favorite qualities are his squishy, loveable face, his soft fur, and his smile. Adam walks well on leash and is eager to "sit" for his dinner. He gets along great with other dogs. He is calm, playful and has good manners and is not overly curious about cats. He is low energy but really enjoys going for walks and being let out to run and explore in a fenced area. Adam is protective of his family and property and, with proper introductions, is the most loyal and gentle guy! He needs an adopter who can guide him with boundaries and offer lots of socialization opportunities. Everyone who meets Adam falls in love with him! He's just waiting for the right one who's ready to provide him a stable and loving home. If that's you, please submit an application and a volunteer will be in touch! (HD)

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Breathless Mahoney

Mastiff Mixed Breed (Medium)

Female, 2 yrs 6 mos

Oakland, CA

Size

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

Details

Story

Breathless Mahoney is a gorgeous ~2 year-old mastiff mix. Mahoney currently weighs 90 lbs, but needs to gain some weight and will probably fill in at around 100-120 lbs. Breathless Mahoney is a little shy with new people but once she warms up, she loves to play and snuggle. She is very playful with other dogs and has a puppy-like rough-and-tumble play style. If you're interested in Breathless Mahoney, fill out a questionnaire today!

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Nova

Mastiff

Female, Adult

Concord, CA

Size

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

Details

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

Story

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Romeo

Mastiff

Male, 6 yrs 10 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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These pups are in Pleasanton, California too!

Below are our newest added Mastiffs available for adoption in Pleasanton, California. To see more adoptable Mastiffs in Pleasanton, California, use the search tool below to enter specific criteria!

Finley - ECAS

Bullmastiff Mixed Breed (Medium)

Male, 1 yr

Pleasanton, CA

Size

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

Details

Story

Finley was surrendered to our shelter on 1/15/26 because his previous owner said they had no time for him. We were told he is a mix of Cane Corso and Bullmastiff. Finley is a sweet guy who can be a bit shy when he first meets someone, but after a proper introduction, he becomes quite outgoing and silly! Because of his initial shyness though, we are currently recommending that he go to a home without children. His adoption fee is $35, plus licensing (if applicable). His neuter surgery will be sponsored! ** Finley would do best in a home without children ** ## See video of Finley at the end of the photo gallery! ## TVAR.org/find-your-pet-adopt/dogs-puppies/ Finley’s Shelter ID# is 88727. He is an approximately 1-year-old, brindle, Bullmastiff/Cane Corso mix. He currently weighs around 75 lbs. He has already been vaccinated and will be microchipped and neutered before going to his new home. Finley is located in kennel A-4. ** 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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Mastiff puppies and dogs in Pleasanton, California

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These Mastiffs are available in Pleasanton, California.

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

These pups are in Pleasanton, California too!

Below are our newest added Mastiffs available for adoption in Pleasanton, California. To see more adoptable Mastiffs in Pleasanton, California, use the search tool below to enter specific criteria!

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Mastiff puppies and dogs in Pleasanton, California

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Adopt a Mastiff near you in Pleasanton, California

These Mastiffs are available in Pleasanton, California.

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

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

These pups are in Pleasanton, California too!

Below are our newest added Mastiffs available for adoption in Pleasanton, California. To see more adoptable Mastiffs in Pleasanton, California, use the search tool below to enter specific criteria!

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Pleasanton, California

Mastiff shelters & rescues in Pleasanton, California

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics