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Mastiff puppies and dogs in Millbrae, California

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

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Adopt a Mastiff near you in Millbrae, 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 Millbrae, California

These Mastiffs are available for adoption close to Millbrae, California.
Photo of PENNY

PENNY

Mastiff

Female, 2 yrs 2 mos
Alameda, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
• learning to love affection• playful, great to walk• Independent!Penny arrived to us unsure of the world, but has since decided that after careful consideration, the world is actually pretty great!She is gorgeous, gentle, and sweeter than she probably wants you to know. Once she`s comfortable with you, her whole personality opens up: She is a big trainer, takes fetch extremely seriously, and in what may be the best discovery of her to date: She. LOVES. Water. She`s a big fan of splashing around and throwing her tennis balls in. Penny is ready for a patient, loving home that can keep her playtime up and thriving. If you`re looking for a beautiful pup who is big hearted and can be playful, she`s right here!
Photo of Princess Bubblegum

Princess Bubblegum

Mastiff

Female, Young
Oakland, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
Straight from her own royal kingdom, this jumbo-sized cuddle monster is ready to be your most loyal companion! 🩷 Princess Bubblegum is a big mastiff mix with floppy ears, soulful eyes, and enough love to smother you in "mathematical" levels of affection. She believes life is all about the simple pleasures: short sniffy hikes, soft places to nap, and being as physically close to her humans as possible. Whether you're a hero on a grand quest or just hanging out at home, she wants to be part of every adventure.PB is an expert-level lovebug who will happily wedge her enormous jowls directly into your personal space the second she detects the possibility of scritches. Privacy? She's never heard of it. Personal space bubble? Totally popped. 🫧 She's convinced she's small enough to fit in your lap, and honestly, who are we to argue with a girl this sweet? If you're looking for a sweet-natured best friend to accompany you on all of life's journeys, come meet Princess Bubblegum. It's going to be alphanumeric! 🎀 Primary Color: Black Brindle Weight: 84.2 Age: 1yrs 7mths 0wks
Photo of Adam

Adam

Mastiff Mixed Breed (Medium)

Male, 2 yrs 1 mo
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)
Photo of Romeo

Romeo

Mastiff

Male, 7 yrs 1 mo
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 Myth: Loch Ness

Myth: Loch Ness

English Mastiff Wirehaired Pointing Griffon

Female, Puppy
Palo Alto, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,
Story
* Interested in adopting? Please read the dog’s full biography to see whether they may be a good fit for your home, then submit an application at www.dpsrescue.org. All DPS Rescue dogs are spayed/neutered, up to date on age-appropriate vaccinations, dewormed, flea/tick treated, and microchipped prior to adoption.This dog will be at the Palo Alto Pet Food Express on Saturday, May 30th from 12-3 PM unless adopted prior to the event. To be considered for adoption, please submit an application in advance at https://www.dpsrescue.org/adopt/dog-application/. Adoption fee: $650 Forget everything you think you know about mythical creatures because the Myth Litter has arrived… and honestly? Society may never recover. These 9 week old English Mastiff mixes are part puppy, part chaos gremlin, part legendary beast, and 100% committed to turning your home into a full-time comedy show. Their mama, Myth, is a 30lb Wire-haired Griffon mix who clearly woke up one day and said, “I would like to create baby moose.” Mission accomplished. These puppies are already over 10lbs and we expect them to be LARGE when full grown. Mom Myth was rescued from the shelter and clearly decided her comeback story needed dragons, giants, and cryptids. The puppies spend their days doing what all baby mythical creatures do: stampeding through the backyard body slamming each other over absolutely nothing stealing toys they do not even want falling asleep mid-zoomie acting personally victimized when breakfast is 14 seconds late They sleep through the night, eat three times a day, and are mastering the ancient puppy arts of “selective hearing” and “finding the exact one thing they are not supposed to chew.” Now introducing the legendary beasts themselves: SASQUATCH – “Talks Least, Says Most”Sasquatch is the calm, mysterious forest cryptid of the group. She does not waste time with unnecessary barking or drama. She simply stares into your soul like she knows your search history. This girl is SMART. She was the first puppy to crawl out of the whelping pool which honestly feels less like a milestone and more like the opening scene of a prison escape movie. Nothing gets past her. While the other puppies are out here acting like tiny caffeinated potatoes, Sasquatch is already evaluating structural weaknesses in your fencing. She is adventurous and playful during the day but absolutely melts into your arms when it is cuddle time. Basically, she is giving:“CEO during business hours. Weighted blanket after dark.” If you adopt Sasquatch, just know she will quietly become the manager of your household within 72 hours. LOCH NESS – “Class Clown” Loch Ness is the reason foster families can never fully relax. This girl wakes up every morning and chooses chaos. If there is a game happening, she started it. If there is wrestling happening, she escalated it. If there is a sibling minding their own business somewhere, don’t worry… she’ll fix that. Nessie is hilarious. She bounces through life like she just drank six Capri Suns and heard someone say “park.” Her mission in life is attention, comedy, and making absolutely sure nobody in the house experiences peace and quiet for too long. But honestly? She is impossible not to love. Her goofy personality is contagious and she keeps everyone laughing nonstop. She is the puppy equivalent of your funniest friend who should probably come with a warning label. Adopting Loch Ness means your camera roll will become 94% blurry action shots. YETI – “Talks Most, Says Least” Yeti may be the runt, but she has the confidence of a 7 foot nightclub bouncer. This tiny queen refuses to be overlooked. She will climb over siblings, launch herself into food bowls, and scream her opinions directly into the universe if she feels she is not receiving adequate attention. And honestly? Respect. Yeti stole hearts immediately with her sweet little face and oversized personality. She is the kind of puppy who acts like she personally pays the mortgage. Small body. Massive opinions. She is adorable, hilarious, feisty, cuddly, dramatic, and approximately 40% ears. If you are looking for a puppy with “main character energy,” congratulations. You found her. CHUPACABRA – “Most Athletic” Chupacabra, lovingly known as Chubey, is basically the cool guy in every early 2000s movie. Biggest puppy in the litter.Handsome face.Calm confidence.Athletic.Probably listens to a soundtrack while running in slow motion. This boy is always ready for adventure, tug of war, exploring the backyard, or inventing new Olympic sports with his siblings. But despite being the biggest and strongest, he has such a calm and steady personality. He is the kind of dog that will go from WWE wrestling match to peaceful nap beside you in under three minutes. He gives off serious:“Protective giant teddy bear who accidentally sits on your feet because he forgot he weighs 90lbs” energy. People are going to stop you in public to ask about this dog. Prepare yourself. BIG FOOT – “Most Likely to Sleep Through an Earthquake” Big Foot became a fan favorite before he even fully opened his eyes. This boy LOVES sleep with the dedication of a retired dad on a Sunday afternoon recliner. First one to the food bowl. First one to tap out for a nap. Honestly, if there were puppy Olympics for professional lounging, he would bring home gold. Biggy is chill, lovable, cuddly, and completely unbothered by the chaos around him. While the other puppies are conducting unauthorized wrestling tournaments, Big Foot is somewhere nearby snoring peacefully like he worked a double shift. But make no mistake — underneath that sleepy exterior is a giant sweetheart who just wants snacks, cuddles, and good vibes. If your dream dog is:“large mythical beast with the soul of a sleepy grandpa”this is your boy. The Myth Litter is going to grow into LARGE dogs with LARGE personalities and even larger ability to take over your couch, your routines, your camera roll, and your entire heart. And fair warning:if you wait too long, these legendary creatures may disappear into forever homes faster than a blurry Bigfoot sighting.May 26, 2026, 9:42 pm
Photo of Myth: Yeti

Myth: Yeti

English Mastiff Wirehaired Pointing Griffon

Female, Puppy
Palo Alto, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,
Story
* Interested in adopting? Please read the dog’s full biography to see whether they may be a good fit for your home, then submit an application at www.dpsrescue.org. All DPS Rescue dogs are spayed/neutered, up to date on age-appropriate vaccinations, dewormed, flea/tick treated, and microchipped prior to adoption.This dog will be at the Palo Alto Pet Food Express on Saturday, May 30th from 12-3 PM unless adopted prior to the event. To be considered for adoption, please submit an application in advance at https://www.dpsrescue.org/adopt/dog-application/. Adoption fee: $650   Forget everything you think you know about mythical creatures because the Myth Litter has arrived… and honestly? Society may never recover. These 9 week old English Mastiff mixes are part puppy, part chaos gremlin, part legendary beast, and 100% committed to turning your home into a full-time comedy show. Their mama, Myth, is a 30lb Wire-haired Griffon mix who clearly woke up one day and said, “I would like to create baby moose.” Mission accomplished. These puppies are already over 10lbs and we expect them to be LARGE when full grown. Mom Myth was rescued from the shelter and clearly decided her comeback story needed dragons, giants, and cryptids. The puppies spend their days doing what all baby mythical creatures do:✔️ stampeding through the backyard✔️ body slamming each other over absolutely nothing✔️ stealing toys they do not even want✔️ falling asleep mid-zoomie✔️ acting personally victimized when breakfast is 14 seconds late They sleep through the night, eat three times a day, and are mastering the ancient puppy arts of “selective hearing” and “finding the exact one thing they are not supposed to chew.” Now introducing the legendary beasts themselves: SASQUATCH – “Talks Least, Says Most”Brown girl with a little black on her head and snout Sasquatch is the calm, mysterious forest cryptid of the group. She does not waste time with unnecessary barking or drama. She simply stares into your soul like she knows your search history. This girl is SMART. She was the first puppy to crawl out of the whelping pool which honestly feels less like a milestone and more like the opening scene of a prison escape movie. Nothing gets past her. While the other puppies are out here acting like tiny caffeinated potatoes, Sasquatch is already evaluating structural weaknesses in your fencing. She is adventurous and playful during the day but absolutely melts into your arms when it is cuddle time. Basically, she is giving:“CEO during business hours. Weighted blanket after dark.” If you adopt Sasquatch, just know she will quietly become the manager of your household within 72 hours. LOCH NESS – “Class Clown”Brindle girl Loch Ness is the reason foster families can never fully relax. This girl wakes up every morning and chooses chaos. If there is a game happening, she started it. If there is wrestling happening, she escalated it. If there is a sibling minding their own business somewhere, don’t worry… she’ll fix that. Nessie is hilarious. She bounces through life like she just drank six Capri Suns and heard someone say “park.” Her mission in life is attention, comedy, and making absolutely sure nobody in the house experiences peace and quiet for too long. But honestly? She is impossible not to love. Her goofy personality is contagious and she keeps everyone laughing nonstop. She is the puppy equivalent of your funniest friend who should probably come with a warning label. Adopting Loch Ness means your camera roll will become 94% blurry action shots. YETI – “Talks Most, Says Least”Golden headed girl Yeti may be the runt, but she has the confidence of a 7 foot nightclub bouncer. This tiny queen refuses to be overlooked. She will climb over siblings, launch herself into food bowls, and scream her opinions directly into the universe if she feels she is not receiving adequate attention. And honestly? Respect. Yeti stole hearts immediately with her sweet little face and oversized personality. She is the kind of puppy who acts like she personally pays the mortgage. Small body. Massive opinions. She is adorable, hilarious, feisty, cuddly, dramatic, and approximately 40% ears. If you are looking for a puppy with “main character energy,” congratulations. You found her. CHUPACABRA – “Most Athletic”Black and brown boy Chupacabra, lovingly known as Chubey, is basically the cool guy in every early 2000s movie. Biggest puppy in the litter.Handsome face.Calm confidence.Athletic.Probably listens to a soundtrack while running in slow motion. This boy is always ready for adventure, tug of war, exploring the backyard, or inventing new Olympic sports with his siblings. But despite being the biggest and strongest, he has such a calm and steady personality. He is the kind of dog that will go from WWE wrestling match to peaceful nap beside you in under three minutes. He gives off serious:“Protective giant teddy bear who accidentally sits on your feet because he forgot he weighs 90lbs” energy. People are going to stop you in public to ask about this dog. Prepare yourself. BIG FOOT – “Most Likely to Sleep Through an Earthquake”Black boy with white feet Big Foot became a fan favorite before he even fully opened his eyes. This boy LOVES sleep with the dedication of a retired dad on a Sunday afternoon recliner. First one to the food bowl. First one to tap out for a nap. Honestly, if there were puppy Olympics for professional lounging, he would bring home gold. Biggy is chill, lovable, cuddly, and completely unbothered by the chaos around him. While the other puppies are conducting unauthorized wrestling tournaments, Big Foot is somewhere nearby snoring peacefully like he worked a double shift. But make no mistake — underneath that sleepy exterior is a giant sweetheart who just wants snacks, cuddles, and good vibes. If your dream dog is:“large mythical beast with the soul of a sleepy grandpa”this is your boy. The Myth Litter is going to grow into LARGE dogs with LARGE personalities and even larger ability to take over your couch, your routines, your camera roll, and your entire heart. And fair warning:if you wait too long, these legendary creatures may disappear into forever homes faster than a blurry Bigfoot sighting.May 26, 2026, 8:14 pm

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Related breeds in Millbrae, California

Mastiff shelters & rescues in Millbrae, California

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

Here are a few organizations closest to you:

Shelter

13.4 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

15.6 miles

East Bay SPCA - Oakland

8323 Baldwin Street, Oakland, CA 94621

Pet Types: cats, dogs

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Rescue

15.9 miles

Rocket Dog Rescue

3561 Foothill Blvd, Oakland, CA 94601

Pet Types: dogs

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Rescue

18.5 miles

Silicon Valley Animal Rescue

Palo Alto, CA 94303

Pet Types: dogs

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Rescue

19.6 miles

Doggie Protective Services (DPS Rescue)

Palo Alto, CA 94306

Pet Types: cats, dogs

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Rescue

28 miles

California Bully Rescue

Pleasanton, CA 94588

Pet Types: dogs

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Shelter

35.9 miles

Humane Society of the North Bay

1121 Sonoma Blvd., Vallejo, CA 94590

Pet Types: cats, dogs

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Shelter

38.7 miles

San Jose Animal Care Center

2750 Monterey Highway, San Jose, CA 95111

Pet Types: cats, dogs, rabbits, small animals

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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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