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Mastiff puppies and dogs in Los Altos, California

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

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Adopt a Mastiff near you Mastiff in cities near Los Altos, California Other pups in Los Altos, California Search for a Mastiff puppy or dog near you Browse Mastiff puppies and dogs in nearby cities Browse related breeds in Los Altos, California Mastiff shelters and rescues in Los Altos, California Learn more about adopting a Mastiff puppy or dog

Adopt a Mastiff near you in Los Altos, 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 Los Altos, California

These Mastiffs are available for adoption close to Los Altos, California.
We'll also keep you updated on SIREN's adoption status with email updates.
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SIREN

Mastiff

Female, 2 yrs
San Jose, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
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We'll also keep you updated on Keeley's adoption status with email updates.
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Keeley

Mastiff

Female, Adult
San Ramon, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Keeley! Keeley is a very sweet dog who is patiently waiting for a loving forever home! To get more information on Keeley, please visit: https://lovesecondchances.org/adoptables/adoptable/keeley/ Adoption fee includes spay/neuter, up to date on shots, deworming and microchipping. If you are interested in Keeley, please fill out an application online at: https://lovesecondchances.org/applications/adoption-application/  March 8, 2025, 2:18 am

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We'll also keep you updated on SADIE's adoption status with email updates.
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Photo of SADIE

SADIE

Mastiff

Female, 2 yrs 2 mos
Santa Cruz, CA
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
Story
Meet Sadie, a sweet 2 year old Mastiff Mix. If you`re a stuffy toy, watch out! She loves stuffies. Sadie has lived in a home with children, cats, and another large breed dog in her previous home. Sadie historically has done well in the bath and on walks. At the shelter, Sadie has been sweet with staff members and volunteers, and very easy to leash up and take for a stroll around the block. In our play yards, she keeps her nose to the ground and takes in all the smells. Who could ask for more? If you`re looking for a large breed dog that checks all the boxes, come soak up this warm weather with Sadie. Please note: Our Santa Cruz location’s Shelter hours are 11-6pm, 7 days a week! Although clients can walk through and see any animals in their kennels during open hours, we end “meet and greets” (aka meeting an animal out of the kennel) at 4:30pm every day. If you’d like to meet an animal out of the kennel, please arrive before 4:00pm to allow for time to discuss individual animals and meet them.

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We'll also keep you updated on Theo's adoption status with email updates.
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Theo

Mastiff

Male, Young
Oakland, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Theo was found as a stray. I got him as an emergency foster and he’s been such an easy to train, loving, timid boy. Shy at first and will hide until he knows the coast is clear, once ready to say hello he is goofy. He moves very slowly and hardly makes a sound around the house. If he sees or hears something suspicious he gives a deep, gentle bark to let you know. When it’s dinner time you get to see how he bucks like a bronco before he sits politely and waits for the, ok, to eat. At 2 years old and 116lbs he still has a bit of growing to do. He has had absolutely no issues in the last year I’ve had him. He gets along with all the dogs and lets you bath him and clip his nails with no fuss. Large breeds like him take longer to mature so even though he is technically an adult, he’s still a big baby that needs guidance to build confidence. Looking for a perfect home should be easy. He loves cuddles, treats, and going out for ‘sniffaris’

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We'll also keep you updated on Rambo's adoption status with email updates.
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Rambo

Mastiff Boxer

Male, Adult
Walnut Creek, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Rambo is a wonderful 5-year old Boxer Mastiff mix looking for his forever home. He is a very well-behaved and loyal companion with lots of desire to play outside with other dogs. He was rescued being blind on his left eye, but that does not stop him from being full of personality and spunk. Rambo has been neutered, microchipped, and all if his vaccinations are up to date. He would be a great addition to any family looking for a large dog, preferably in a household without small pets or cats. He weighs about 60 pounds. Please contact me to set up a meet and greet or if you have any questions.

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We'll also keep you updated on Kylo's adoption status with email updates.
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Kylo

Mastiff German Shepherd Dog

Male, Young
Walnut Creek, CA
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
Story
Kylo is a playful and affectionate young boy who loves spending time with his humans! He's very friendly and enjoys being the center of attention, making him a great companion for active families. This heart of gold loves playing outdoors, is very intelligent and social with other dogs. Primary Color: Black Secondary Color: Brown Weight: 63.375 Age: 1yrs 6mths 3wks

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Search for a Mastiff puppy or dog

Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Los Altos, California.

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Mastiff puppies and dogs in nearby cities

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Related breeds in Los Altos, California

Bullmastiffs in Los Altos, California Neapolitan Mastiffs in Los Altos, California Saint Bernards in Los Altos, California

Mastiff shelters & rescues in Los Altos, California

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

Here are a few organizations closest to you:

Shelter

15.2 miles

San Jose Animal Care Center

2750 Monterey Highway, San Jose, CA 95111

Pet Types: cats, dogs, rabbits, small animals

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Rescue

24.4 miles

Love & Second Chances

San Ramon, CA 94582

Pet Types: dogs

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Shelter

27.3 miles

Santa Cruz County Animal Shelter

1001 Rodriguez Avenue, Santa Cruz, 580 Airport Blvd, Watsonville, Santa Cruz, CA 95062

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

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Rescue

39.1 miles

Joybound People and Pets

2890 Mitchell Drive, Walnut Creek, CA 94598

Pet Types: cats, dogs

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Shelter

44.4 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

44.6 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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Looking for a specific shelter or rescue?

If you're not seeing what you're looking for, try our shelter and rescue search. We have more than 17,000 organizations in our database with furry pals waiting for a new home!

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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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