Adopt
Rehome

Mastiff puppies and dogs in Tucson, Arizona

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

Picture of Mastiff

Learn More:

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

Adopt a Mastiff near you in Tucson, Arizona

These Mastiffs are available in Tucson, Arizona.
Photo of ZEUS

ZEUS

Mastiff

Male, 4 yrs 6 mos
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Meet Zeus, a big ol’ lover boy with plenty of cuddles to give! This 4.5-year-old Mastiff mix is ready to steal your heart with his sweet nature and loveable charm. He has a good history with other dogs and would be happy to meet some potential furry friends. If you’re looking for a big snuggle buddy to love on, Zeus might just be your guy!

Learn More

Small right facing arrow
Photo of KRONOS

KRONOS

Mastiff

Male, 4 yrs 6 mos
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
The name is Kronos, and he’s ready to make his introduction! He joined us from another shelter, which means we don’t have many details about his past. As we gather more information, we’ll update his profile so you can follow along on his journey!

Learn More

Small right facing arrow
Photo of ECHO

ECHO

Mastiff Labrador Retriever

Female, 2 yrs
Tucson, AZ
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
Hi! I am currently being cared for in a foster home. Please reach out to foster@hssaz.org to schedule a meet with me! Meet Echo! This sweet 2-year-old girl is happiest when she’s by your side, ready to turn any day into an adventure. She’s affectionate, playful, and loves her toys, but she’s also the perfect companion for car rides, hiking trails, and splashing around in the water! Echo has a good history with other dogs, though she can play a little rough and may not realize just how big she is, so use caution when introducing her to smaller pups. If you’re looking for a loving best friend who’s always up for fun, Echo is ready to join your adventures!

Learn More

Small right facing arrow
new badge
Photo of WEISER

WEISER

Mastiff

Male, 5 yrs 1 mo
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
-

Learn More

Small right facing arrow
Photo of MOUSSE

MOUSSE

Mastiff Chow Chow

Male, 3 yrs 6 mos
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs,
Story
EMERGENCY PLACEMENT DEADLINE5PM MONDAY 09/08/25AVAILABLE FOR ADOPTION ONLY THROUGH PACC Name: MousseAnimal ID: A869969Age: 2 yearsWeight: 88lbs.Web Link: 24petconnect.com/PimaAdoptablePets/Details/PIMA/A869969 About: Just like the delicious dessert he`s named after, our Mousse is a truly sweet guy. This dashing, robust, caramel-colored mixed breed is looking for a hero to give him his second chance at a forever home. Mousse has been through a lot in his young life and recently found himself back at the shelter, but we`re committed to helping him find his perfect fit.Mousse was originally found as a stray and was later adopted. Unfortunately, he was recently returned to the shelter. While we knew he had a history of resource guarding with other dogs, it was discovered in his adoptive home that he also struggles with resource guarding around children. Because of this, it is crucial that his new home has no children.Mousse also needs to be the only pet in the home. He has a history of resource guarding with other dogs, which led to a previous altercation and injury. It is essential that his new family fully understands this behavior and is prepared to take all necessary precautions to keep Mousse and any other household members safe.In his previous home, Mousse was described as a playful and affectionate dog who loved to be by his person`s side. His foster parent shared that Mousse has `so much love to give in the right home.` He`s a big boy with an even bigger heart; just waiting for a family to shower him with affection and provide the dedicated guidance he needs. He is energetic and will need a secure yard and monitoring to ensure he doesn`t attempt another escape.Mousse is a good dog who needs a savvy adopter who understands his unique needs. If you`re looking for a loyal, lifelong companion and believe your home is the perfect fit for Mousse to thrive, please come to PACC and ask to meet this magnificent boy. This is his last chance at finding his forever home, and he deserves a hero of his own.Available adoption Only through PACC.Interested parties:Must visit PACC before the 5:00PM Monday September 8, 2025 deadline to meet with a counselor who will review notes and introduce you to the dog to ensure that it’s a good fit. Some dogs may also require an introduction to any dogs they may potentially live with. Home Management PlanInjured Another Animal • altercation with resident dog over resources, causing injuries.Resource Guarding Space From Dogs: • Ensure each dog has their own space. • Do not force dogs into each other`s spaceResource Guarding Food From Dogs • Feed your new dog at set times. Do NOT free feed your new dog with other dogs. • Set up separate SAFE spaces where dogs cannot assess each other. HIGHLY recommend feeding in kennels or separate rooms. • Do not offer treats to multiple dogs at the same time. Treat time should be separate. • Teach your new dog, drop it and leave it.No Kids • due to near miss bite in previous home from resource guardingResource Guarding Toys from Dogs and seen with a child • Pick up all toys before bringing your new dog home. • Make toy time separate, give each dog their own space to enjoy their toys. • Teach your new dog to drop it and leave it. Escape Risk • Mousse likes to adventure and may find ways to escape their confinement. • Monitor outside time, do not leave unattended in the yard.No Other Dogs • due to resource guarding and causing injuries to another dog

Learn More

Small right facing arrow
new badge
Photo of LARS*

LARS*

Mastiff

Male, 5 yrs 3 mos
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
If you’re someone who prefers to live in the slow lane and take things easy and are looking for a new best friend who will match your pace, let us introduce you to Lars! Lars is an understated fellow- he might not catch your attention as you’re walking through the crowded shelter, but we’re sure that he’ll snatch your heart if you take the time to meet him! Lars has some devoted volunteer pals who think he’s pretty great, sharing: “Lars doesn`t just take a walk, he is the walk. And he has one speed - Lars speed, which won`t be breaking any records unless it`s in the category lackadaisical. He’s a pretty slow, reserved and mellow guy. He`s only estimated to be 5 years old but has the air of a much more distinguished (old) fella. So, if you`re one who likes to build relationships slowly, meet Lars and see if you can bring out his inner puppy. I`d love to see how he does in a home.” “Lars is a gentle sweetheart! He has learned his kennel routine and always walks easily over to the play yard. Once in the yard, he goes potty, does a little sniffing, then it`s time to snuggle!! Today when I sat down in a chair, he got closer and closer and closer, until his head rested on my knee and we enjoyed some sweet cuddles together. He’s always happy to sit by my side, whether I’m on the ground or in a chair, as long as I’m up for pets, he’s game! He`s a sweet guy!”Lars has been easygoing when meeting other dogs in playgroup and would like to meet any resident dogs before heading home to ensure a good fit. Lars is ready to learn what it means to be spoiled in a loving home- his gentle disposition and sweet demeanor will make a wonderful addition to a family! Come meet him today!

Learn More

Small right facing arrow
View all results

Or, how about these Mastiffs in cities near Tucson, Arizona

These Mastiffs are available for adoption close to Tucson, Arizona.
Photo of ZEUS

ZEUS

Mastiff

Male, 4 yrs 6 mos
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Meet Zeus, a big ol’ lover boy with plenty of cuddles to give! This 4.5-year-old Mastiff mix is ready to steal your heart with his sweet nature and loveable charm. He has a good history with other dogs and would be happy to meet some potential furry friends. If you’re looking for a big snuggle buddy to love on, Zeus might just be your guy!

Learn More

Small right facing arrow
Photo of KRONOS

KRONOS

Mastiff

Male, 4 yrs 6 mos
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
The name is Kronos, and he’s ready to make his introduction! He joined us from another shelter, which means we don’t have many details about his past. As we gather more information, we’ll update his profile so you can follow along on his journey!

Learn More

Small right facing arrow
Photo of ECHO

ECHO

Mastiff Labrador Retriever

Female, 2 yrs
Tucson, AZ
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
Hi! I am currently being cared for in a foster home. Please reach out to foster@hssaz.org to schedule a meet with me! Meet Echo! This sweet 2-year-old girl is happiest when she’s by your side, ready to turn any day into an adventure. She’s affectionate, playful, and loves her toys, but she’s also the perfect companion for car rides, hiking trails, and splashing around in the water! Echo has a good history with other dogs, though she can play a little rough and may not realize just how big she is, so use caution when introducing her to smaller pups. If you’re looking for a loving best friend who’s always up for fun, Echo is ready to join your adventures!

Learn More

Small right facing arrow
new badge
Photo of WEISER

WEISER

Mastiff

Male, 5 yrs 1 mo
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
-

Learn More

Small right facing arrow
Photo of MOUSSE

MOUSSE

Mastiff Chow Chow

Male, 3 yrs 6 mos
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs,
Story
EMERGENCY PLACEMENT DEADLINE5PM MONDAY 09/08/25AVAILABLE FOR ADOPTION ONLY THROUGH PACC Name: MousseAnimal ID: A869969Age: 2 yearsWeight: 88lbs.Web Link: 24petconnect.com/PimaAdoptablePets/Details/PIMA/A869969 About: Just like the delicious dessert he`s named after, our Mousse is a truly sweet guy. This dashing, robust, caramel-colored mixed breed is looking for a hero to give him his second chance at a forever home. Mousse has been through a lot in his young life and recently found himself back at the shelter, but we`re committed to helping him find his perfect fit.Mousse was originally found as a stray and was later adopted. Unfortunately, he was recently returned to the shelter. While we knew he had a history of resource guarding with other dogs, it was discovered in his adoptive home that he also struggles with resource guarding around children. Because of this, it is crucial that his new home has no children.Mousse also needs to be the only pet in the home. He has a history of resource guarding with other dogs, which led to a previous altercation and injury. It is essential that his new family fully understands this behavior and is prepared to take all necessary precautions to keep Mousse and any other household members safe.In his previous home, Mousse was described as a playful and affectionate dog who loved to be by his person`s side. His foster parent shared that Mousse has `so much love to give in the right home.` He`s a big boy with an even bigger heart; just waiting for a family to shower him with affection and provide the dedicated guidance he needs. He is energetic and will need a secure yard and monitoring to ensure he doesn`t attempt another escape.Mousse is a good dog who needs a savvy adopter who understands his unique needs. If you`re looking for a loyal, lifelong companion and believe your home is the perfect fit for Mousse to thrive, please come to PACC and ask to meet this magnificent boy. This is his last chance at finding his forever home, and he deserves a hero of his own.Available adoption Only through PACC.Interested parties:Must visit PACC before the 5:00PM Monday September 8, 2025 deadline to meet with a counselor who will review notes and introduce you to the dog to ensure that it’s a good fit. Some dogs may also require an introduction to any dogs they may potentially live with. Home Management PlanInjured Another Animal • altercation with resident dog over resources, causing injuries.Resource Guarding Space From Dogs: • Ensure each dog has their own space. • Do not force dogs into each other`s spaceResource Guarding Food From Dogs • Feed your new dog at set times. Do NOT free feed your new dog with other dogs. • Set up separate SAFE spaces where dogs cannot assess each other. HIGHLY recommend feeding in kennels or separate rooms. • Do not offer treats to multiple dogs at the same time. Treat time should be separate. • Teach your new dog, drop it and leave it.No Kids • due to near miss bite in previous home from resource guardingResource Guarding Toys from Dogs and seen with a child • Pick up all toys before bringing your new dog home. • Make toy time separate, give each dog their own space to enjoy their toys. • Teach your new dog to drop it and leave it. Escape Risk • Mousse likes to adventure and may find ways to escape their confinement. • Monitor outside time, do not leave unattended in the yard.No Other Dogs • due to resource guarding and causing injuries to another dog

Learn More

Small right facing arrow
new badge
Photo of LARS*

LARS*

Mastiff

Male, 5 yrs 3 mos
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
If you’re someone who prefers to live in the slow lane and take things easy and are looking for a new best friend who will match your pace, let us introduce you to Lars! Lars is an understated fellow- he might not catch your attention as you’re walking through the crowded shelter, but we’re sure that he’ll snatch your heart if you take the time to meet him! Lars has some devoted volunteer pals who think he’s pretty great, sharing: “Lars doesn`t just take a walk, he is the walk. And he has one speed - Lars speed, which won`t be breaking any records unless it`s in the category lackadaisical. He’s a pretty slow, reserved and mellow guy. He`s only estimated to be 5 years old but has the air of a much more distinguished (old) fella. So, if you`re one who likes to build relationships slowly, meet Lars and see if you can bring out his inner puppy. I`d love to see how he does in a home.” “Lars is a gentle sweetheart! He has learned his kennel routine and always walks easily over to the play yard. Once in the yard, he goes potty, does a little sniffing, then it`s time to snuggle!! Today when I sat down in a chair, he got closer and closer and closer, until his head rested on my knee and we enjoyed some sweet cuddles together. He’s always happy to sit by my side, whether I’m on the ground or in a chair, as long as I’m up for pets, he’s game! He`s a sweet guy!”Lars has been easygoing when meeting other dogs in playgroup and would like to meet any resident dogs before heading home to ensure a good fit. Lars is ready to learn what it means to be spoiled in a loving home- his gentle disposition and sweet demeanor will make a wonderful addition to a family! Come meet him today!

Learn More

Small right facing arrow
View all results

These pups are in Tucson, Arizona too!

Below are our newest added Mastiffs available for adoption in Tucson, Arizona. To see more adoptable Mastiffs in Tucson, Arizona, use the search tool below to enter specific criteria!
new badge
Photo of CHUY*

CHUY*

St. Bernard

Male, 4 yrs
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
-

Learn More

Small right facing arrow
new badge
Photo of PUMPKIN*

PUMPKIN*

St. Bernard

Male, 8 yrs
Tucson, AZ
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids,
Story
-

Learn More

Small right facing arrow
new badge
Photo of TRAVIESA

TRAVIESA

St. Bernard American Pit Bull Terrier

Female, 13 yrs 11 mos
Tucson, AZ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs,
Story
In her previous home, Traviesa was good with large dogs, small dogs, and was described as being a good protector to the owner’s grandchildren. She also enjoyed car rides. She also spent some time in a foster home. Here is some of the Q & A with the foster parent:How long have you fostered this animal?2 weeksWhat was your foster eating while in your care (brand/flavor of food):Nutrish kibble in slow feederWould you say this animal is vocal, quiet or somewhere in between?Sometimes vocal when she needs to go outsideWas your foster pet around other dogs? if yes, please describe how they did.Yes, Travi was around my other foster Apollo with no issuesWhere does s/he sleep?In my room. Dog bed, floor, she moves around a lotHow does the dog behave when left alone?She gets bored at home sometimes I try to occupy her with treats in a cardboard box or food in a frozen slow feeder. Is this pet house broken or litterbox trained?For the most part, but if she is left home for too long she may have an accident. She is an old lady after all it`s not her faultDescribe play behavior and favorite toys:She`s not super into toys but might chase after the same ball her brother is going for.What words and qualities best describe your foster? (friendly, reserved, cuddly, etc)Travi is Loyal. She will follow you to any room of the house. She`s not a huge snuggler yet but she will walk up and politely ask for pets. She is gentle, removes herself from anything she doesn`t like. If her brother is playing too hard she ignores him and leaves. Very tolerant and I think would be great with older children.Any additional information you`d like to share with us:She`s a good girl

Learn More

Small right facing arrow
View all results

Search for a Mastiff puppy or dog

Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Tucson, Arizona.

    an arrow icon
location arrow icon Current location
  • New York, NY
  • Los Angeles, CA
  • Houston, TX
  • Dallas, TX
  • Brooklyn, NY

Sorry, we can’t find that location! Please try again.

    Age
    an arrow icon

Mastiff puppies and dogs in nearby cities

Mastiff Puppies near me Mastiff in Marana, AZ Mastiff in Oro Valley, AZ Mastiff in Sahuarita, AZ Mastiff in South Tucson, AZ

Related breeds in Tucson, Arizona

Bullmastiffs in Tucson, Arizona Neapolitan Mastiffs in Tucson, Arizona Saint Bernards in Tucson, Arizona

Mastiff shelters & rescues in Tucson, Arizona

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

Here are a few organizations closest to you:

Shelter

3.7 miles

Humane Society of Southern Arizona

635 W. Roger Rd., Tucson, AZ 85705

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

More an arrow icon

Shelter

4.1 miles

Pima Animal Care Center

4000 N. Silverbell Road, Tucson, AZ 85745

Pet Types: cats, dogs, rabbits, small animals

More an arrow icon

Shelter

5.6 miles

Paws Without Borders

4115 East Lester Street, Tucson, AZ 85712

Pet Types: dogs

More an arrow icon

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!

Find an Animal Shelter
magnifying glass with cat and dog

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.

Learn More an arrow icon