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Mastiff puppies and dogs in Austin, Texas

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

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Adopt a Mastiff near you in Austin, Texas

These Mastiffs are available in Austin, Texas.
Photo of Oskar

Oskar

Mastiff Mixed Breed (Large)

Male, 3 mos
austin, TX
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Meet Oskar! Oskar is a big ball of puppy joy with an even bigger set of paws. He spends his days doing what puppies do best - snuggling up for naps, tumbling around the backyard, tagging along after his foster brothers like they hung the moon, and belly-flopping into any bit of water he can find. Those gigantic webbed feet of his are almost comically too big for him right now, and honestly, we think he's training to be a future (slightly less graceful) Michael Phelps. At just 3 months old (As of September 7th, 2026), he's already 40 lbs of pure puppy enthusiasm, which means there's a whole lot of goofy, loyal, cuddly dog still to grow into. Every day with Oskar is a little bit of chaos and a whole lot of sweetness - he greets you like you hung the stars, follows you from room to room just to be near you, and melts right into your lap the second you sit down. Oskar is looking for a family ready for a lifetime of splashing in puddles, learning new tricks, and endless belly rubs. If you've been waiting for a sign to bring home a big, happy, water-loving goofball, this is it - come meet Oskar, and we promise he'll steal your heart the second you do.

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Photo of Cameron

Cameron

Mastiff Mixed Breed (Large)

Male, 3 mos
austin, TX
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Meet Cameron! Cameron is a 3-month-old brindle babe with the heart of an absolute love bug. Give him an ounce of attention and he'll take it and ask for more - he lives for being doted on, adores a good belly rub, and has perfected the art of resting his head right in your lap like he was always meant to be there. On warm days you'll find him splashing around in the kiddie pool like it's the best thing that's ever happened to him. He's still got some growing up to do, and he's doing it well - Cameron is quickly learning what it means to be a very good boy, and he already gets along great with dogs of all sizes, big or small. At 35 lbs and just three months old, this brindle boy has a whole lot of love (and a whole lot of size) still ahead of him. If you're looking for a sweet, affectionate puppy who wants nothing more than to be near you, splash around, and soak up every bit of love you've got, Cameron is ready to be your best friend. Come meet him - you won't want to leave without him. She and her sister have not been tested with cats or children yet.

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Photo of Magic

Magic

Mastiff American Pit Bull Terrier

Male, 3 yrs
Austin, TX
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Hi, I'm new to Austin and am looking forward to meeting a foster or adopter to help show me around! My friends at APA might not know a ton about me just yet, but you could help them get valuable notes by offering to take me on a sleepover for a few days. Please stop by the shelter to meet me today or if my location says "Foster" click the Adoption Inquiry button to get connected to my foster!

Learn More

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Photo of Neko

Neko

Mastiff Akita

Male, 4 yrs
Austin, TX
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, House-trained, Spayed or Neutered,
Story
Meet Neko, he is a gentle giant. He has the warmhearted soul with the softest eyes and the biggest potential for love. This handsome boy arrived at our shelter after an injury to his ear which gives him his quirky signature, one floppy ear. Neko is a curious observer of the world—he takes his time, watches with wide-eyed wonder, and once you’ve gained his trust, you will have a new bestie. As a friend you will witness his whole expression soften, he leans in closer and his tail gives a shy little wag. It’s like watching a flower open in slow motion, and it’s impossible not to fall for him. Neko is good in the home to free roam, friendly with other dogs, potty trained, he’s stunning and so-so very sweet — all he needs is the right home and the friendship will flourish. 🐾❤️Paws, love & loyalty 🛋️ Professional lounger 💋 Expert heart-stealer 👑Fetch King 🏡 House-trained Neko thrives with individuals who understand that trust is built, not rushed (a slow dance, not a race). If you have patience and a calm demeanor, Neko might just be the enchanted companion you’ve been dreaming of!

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Photo of Zeppelin

Zeppelin

Mastiff Plott Hound

Male, 4 yrs 1 mo
Austin, TX
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, House-trained,
Story
Zeppelin is ready to drift right into your heart! This handsome, house-trained brindle boy may have a calm, gentle nature, but he has plenty of love to give. With his striking tiger-striped coat, hazel eyes, and sweet expression, Zeppelin is hard to resist—and once he knows you, he’ll make sure you know just how much he loves you. One of his favorite ways to show affection is by coming over and giving a “hug,” burying his head right into your lap for some quality cuddle time. Talk about a first-class passenger! Zeppelin is affectionate, attentive, playful, and wonderfully gentle-spirited. He loves people and seems to believe that strangers are simply friends he hasn’t hugged yet. He enjoys spending time outside and will often check in with his person while exploring the yard. He has a very good recall and a genuine desire to please, which suggests he could be a wonderful student as he continues learning and growing with his family. And while he enjoys toys and treats, his favorite reward may simply be being close to his people. Zeppelin has made an encouraging comeback after a recent health setback and is feeling much better. He is still a little underweight, but he is steadily gaining and getting stronger with good nutrition, a comfortable routine, and plenty of TLC. With his gentle personality, affectionate nature, and wonderful desire to please, Zeppelin has all the makings of a devoted companion. If you’re looking for a sweet boy who will happily stick by your side—and occasionally bury his head in your lap for a hug—Zeppelin may be the perfect match. Let this lovable brindle gentleman melt your heart!

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Photo of Schneider

Schneider

Mastiff Hound (Unknown Type)

Male, 1 yr 6 mos
Austin, TX
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, Spayed or Neutered,
Story
Meet Schneider, a sweet, handsome boy whose brave heart is growing stronger every day! Schneider loves the simple pleasures in life—like taking leisurely walks, exploring every bush, rolling around happily in the grass, and enjoying tasty treats. Once he recognizes a familiar friend, he'll trot right over to say hello with a gentle nose-boop or sit quietly nearby just to share your company. Schneider feels most relaxed in the company of other dogs, making him a great candidate to go home with a dog friend! He is looking for a human that will allow him to birdwatch, supervise while you go about your daily life at home, sleep in, and curl up in a safe corner to decompress. The shelter environment is very overwhelming for him, he can't wait to learn what true love looks like away from his kennel. Schedule a meet and greet today with Schneider or ask to introduce your resident dog to him!

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Or, how about these Mastiffs in cities near Austin, Texas

These Mastiffs are available for adoption close to Austin, Texas.
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Photo of Hades

Hades

Mastiff

Male, Adult
Round Rock, TX
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Not good with cats, House-trained, Shots are up-to-date,
Story
Try to find a home for Hades — A Gentle Giant Looking for His Forever Family 🐾 Hades is a big boy with an even bigger heart. ❤️ He is what you would call a Gentle Giant and, more than anything in the world, he LOVES to snuggle. If you sit down, there’s a good chance Hades will put his big head right in your lap and happily stay there. In fact, he would probably choose cuddles over food any day! 🥰 About two years ago, we found Hades abandoned along with his two siblings. We searched for their owner but were never able to find one, and we believe they were dumped. Thankfully, we were able to find wonderful homes for his siblings. We had every intention of keeping Hades forever, but life has changed in a way we never expected. This is an incredibly difficult decision because Hades is very loved. We are not looking to get rid of him — we are looking for the right family who will love him, care for him, and make him a true member of their family.

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Photo of Oskar

Oskar

Mastiff Mixed Breed (Large)

Male, 3 mos
austin, TX
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Meet Oskar! Oskar is a big ball of puppy joy with an even bigger set of paws. He spends his days doing what puppies do best - snuggling up for naps, tumbling around the backyard, tagging along after his foster brothers like they hung the moon, and belly-flopping into any bit of water he can find. Those gigantic webbed feet of his are almost comically too big for him right now, and honestly, we think he's training to be a future (slightly less graceful) Michael Phelps. At just 3 months old (As of September 7th, 2026), he's already 40 lbs of pure puppy enthusiasm, which means there's a whole lot of goofy, loyal, cuddly dog still to grow into. Every day with Oskar is a little bit of chaos and a whole lot of sweetness - he greets you like you hung the stars, follows you from room to room just to be near you, and melts right into your lap the second you sit down. Oskar is looking for a family ready for a lifetime of splashing in puddles, learning new tricks, and endless belly rubs. If you've been waiting for a sign to bring home a big, happy, water-loving goofball, this is it - come meet Oskar, and we promise he'll steal your heart the second you do.

Learn More

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Photo of Cameron

Cameron

Mastiff Mixed Breed (Large)

Male, 3 mos
austin, TX
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Meet Cameron! Cameron is a 3-month-old brindle babe with the heart of an absolute love bug. Give him an ounce of attention and he'll take it and ask for more - he lives for being doted on, adores a good belly rub, and has perfected the art of resting his head right in your lap like he was always meant to be there. On warm days you'll find him splashing around in the kiddie pool like it's the best thing that's ever happened to him. He's still got some growing up to do, and he's doing it well - Cameron is quickly learning what it means to be a very good boy, and he already gets along great with dogs of all sizes, big or small. At 35 lbs and just three months old, this brindle boy has a whole lot of love (and a whole lot of size) still ahead of him. If you're looking for a sweet, affectionate puppy who wants nothing more than to be near you, splash around, and soak up every bit of love you've got, Cameron is ready to be your best friend. Come meet him - you won't want to leave without him. She and her sister have not been tested with cats or children yet.

Learn More

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Photo of Magic

Magic

Mastiff American Pit Bull Terrier

Male, 3 yrs
Austin, TX
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Hi, I'm new to Austin and am looking forward to meeting a foster or adopter to help show me around! My friends at APA might not know a ton about me just yet, but you could help them get valuable notes by offering to take me on a sleepover for a few days. Please stop by the shelter to meet me today or if my location says "Foster" click the Adoption Inquiry button to get connected to my foster!

Learn More

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Photo of Neko

Neko

Mastiff Akita

Male, 4 yrs
Austin, TX
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, House-trained, Spayed or Neutered,
Story
Meet Neko, he is a gentle giant. He has the warmhearted soul with the softest eyes and the biggest potential for love. This handsome boy arrived at our shelter after an injury to his ear which gives him his quirky signature, one floppy ear. Neko is a curious observer of the world—he takes his time, watches with wide-eyed wonder, and once you’ve gained his trust, you will have a new bestie. As a friend you will witness his whole expression soften, he leans in closer and his tail gives a shy little wag. It’s like watching a flower open in slow motion, and it’s impossible not to fall for him. Neko is good in the home to free roam, friendly with other dogs, potty trained, he’s stunning and so-so very sweet — all he needs is the right home and the friendship will flourish. 🐾❤️Paws, love & loyalty 🛋️ Professional lounger 💋 Expert heart-stealer 👑Fetch King 🏡 House-trained Neko thrives with individuals who understand that trust is built, not rushed (a slow dance, not a race). If you have patience and a calm demeanor, Neko might just be the enchanted companion you’ve been dreaming of!

Learn More

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Photo of Zeppelin

Zeppelin

Mastiff Plott Hound

Male, 4 yrs 1 mo
Austin, TX
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, House-trained,
Story
Zeppelin is ready to drift right into your heart! This handsome, house-trained brindle boy may have a calm, gentle nature, but he has plenty of love to give. With his striking tiger-striped coat, hazel eyes, and sweet expression, Zeppelin is hard to resist—and once he knows you, he’ll make sure you know just how much he loves you. One of his favorite ways to show affection is by coming over and giving a “hug,” burying his head right into your lap for some quality cuddle time. Talk about a first-class passenger! Zeppelin is affectionate, attentive, playful, and wonderfully gentle-spirited. He loves people and seems to believe that strangers are simply friends he hasn’t hugged yet. He enjoys spending time outside and will often check in with his person while exploring the yard. He has a very good recall and a genuine desire to please, which suggests he could be a wonderful student as he continues learning and growing with his family. And while he enjoys toys and treats, his favorite reward may simply be being close to his people. Zeppelin has made an encouraging comeback after a recent health setback and is feeling much better. He is still a little underweight, but he is steadily gaining and getting stronger with good nutrition, a comfortable routine, and plenty of TLC. With his gentle personality, affectionate nature, and wonderful desire to please, Zeppelin has all the makings of a devoted companion. If you’re looking for a sweet boy who will happily stick by your side—and occasionally bury his head in your lap for a hug—Zeppelin may be the perfect match. Let this lovable brindle gentleman melt your heart!

Learn More

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These pups are in Austin, Texas too!

Below are our newest added Mastiffs available for adoption in Austin, Texas. To see more adoptable Mastiffs in Austin, Texas, use the search tool below to enter specific criteria!
Photo of Jelly Donut

Jelly Donut

St. Bernard Bullmastiff

Male, 7 yrs 5 mos
Austin, TX
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
House-trained, Spayed or Neutered,
Story
Meet Jelly Donut, a charismatic, goofy 130-pound gentle giant who genuinely believes he fits perfectly in your lap! This fun-loving gentleman is as bright and observant as he is hilarious. His signature move? Conning you into a game of fetch—he’ll happily watch you throw the ball, fake a run, and then sit back to watch you go retrieve it. Jelly Donut brings pure joy wherever he goes, whether he’s doing enthusiastic backyard zoomies, relaxing on a sunny brewery patio, or embarking on epic "sniff-safaris" on leisurely neighborhood walks. When he gets super excited to play and engage, his inner puppy comes out with a few happy hops, but at his core, he’s a massive cuddle bug who just wants to soak up all the pets you can offer. He’s a big fan of squeaky toys, Kongs, cheese, people-watching, and taking long, glorious naps after a good enrichment session. Research shows that giant-breed dogs bring unmatched companionship and grounding energy to a household. If you’re looking for a larger-than-life character to make you laugh every single day, come meet Jelly Donut—he’s ready to steal your heart (and your spot on the couch)!

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Photo of Rosey

Rosey

Bullmastiff American Pit Bull Terrier

Female, Young
Austin, TX
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
Story
Primary Color: Tan Secondary Color: Black Weight: 47 Age: 1yrs 5mths 1wks

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Photo of Misha

Misha

Great Pyrenees Neapolitan Mastiff

Male, Adult
Austin, TX
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Primary Color: Grey Secondary Color: White Weight: 100 Age: 3yrs 4mths 2wks

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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 Austin, Texas.

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Mastiff puppies and dogs in nearby cities

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Related breeds in Austin, Texas

Bullmastiffs in Austin, Texas Neapolitan Mastiffs in Austin, Texas Saint Bernards in Austin, Texas

Mastiff shelters & rescues in Austin, Texas

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

Here are a few organizations closest to you:

Rescue

6.1 miles

Central Texas Ruffugees

austin, TX 78727

Pet Types: dogs

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Shelter

15.3 miles

Austin Pets Alive!

1156 West Cesar Chavez, Austin, TX 78703

Pet Types: cats, dogs

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Shelter

16.9 miles

Austin Animal Center

7201 Levander Loop, Austin, TX 78702

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

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Shelter

37.8 miles

Bastrop County Animal Shelter

589 Coolwater Dr., Bastrop, TX 78602

Pet Types: cats, dogs

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Shelter

45.5 miles

San Marcos Regional Animal Shelter

750 River Road, San Marcos, TX 78666

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

clipboard with list

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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