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Mastiff puppies and dogs in Saint Louis, Missouri

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

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Adopt a Mastiff near you in Saint Louis, Missouri

These Mastiffs are available in Saint Louis, Missouri.
We'll also keep you updated on BROWNIE's adoption status with email updates.
Photo of BROWNIE

BROWNIE

Mastiff American Pit Bull Terrier

Male, 2 yrs 1 mo
St. Louis, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Brownie is a calm soul ready to find his new home! He walks well on leash, knows a few cues. This boy is so patient and gentle with his friends! Come meet sweet Brownie today!
We'll also keep you updated on GRETA's adoption status with email updates.
Photo of GRETA

GRETA

Mastiff

Female, 7 mos
St. Louis, MO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Spayed or Neutered,
Story
-
We'll also keep you updated on Finrir's adoption status with email updates.
Photo of Finrir

Finrir

Mastiff Mixed Breed (Medium)

Male, 4 yrs 2 mos
St. Louis, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Meet Finrir (Finn)! Finrir, affectionately known as Finn, is ready to charm his way into your heart and home! About Finn: Finn is an 85 lb Mastiff mix with a heart as big as his size. He's a gentle giant who thrives on one-on-one attention and would love to be the center of your universe! Despite his size, Finn is a total softie. He's non-destructive and a pro at taking his medicine with ease. While Finn prefers to be the only fur baby in the house due to some dog reactivity, he'll fill your home with enough love to make up for it! What Finn Needs: A loving family who understands his need to be the only pet. Plenty of space for him to stretch out and relax. Someone who enjoys leisurely strolls because Finn walks like a true gentleman on the leash! Interested in Adopting? If you're ready to give Finn the forever home he deserves, reach out to Center for Animal Rescue and Enrichment of St. Louis - CARE STL Let's find this big guy his perfect match! Help spread the word by sharing this post with friends and family. Together, we can help Finn find his happily ever after! #AdoptDontShop #FosterDog
We'll also keep you updated on Frigga's adoption status with email updates.
Photo of Frigga

Frigga

Mastiff

Female, 1 yr 6 mos
St. Louis, MO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
Beautiful Frigga came to us as an owner surrender when her people could no longer care for her. She is only 1 1/2 years old and is a big girl at 103 pounds. We're told she is house-trained, people-friendly, and loving, and would do best with submissive dog friends! More information will be added as we get to know her! For anyone looking for a lost pet or considering adoption or fostering, we encourage you to make regular visits to the shelter. Please note that this website is updated every 24 hours and may not include all the animals available at CARE STL. If you are interested in a specific dog, such as (name of dog), we invite you to stop by the CARE STL Adoption Center located at 2700 Walnut Pl, 63103. Simply ask for more details about the particular animal you are interested in.
We'll also keep you updated on Rutt's adoption status with email updates.
Photo of Rutt

Rutt

Mastiff

Male, 4 yrs 1 mo
St. Louis, MO
Size
(when grown) -
Details
-
Story
This 4 year old gentleman is new to us and we are still getting to know him. Information will be added once we learn more about him. Please consider fostering to help us learn more about our pups! For anyone looking for a lost pet or considering adoption or fostering, we encourage you to make regular visits to the shelter. Please note that this website is updated every 24 hours and may not include all the animals available at CARE STL. If you are interested in a specific dog, such as (name of dog), we invite you to stop by the CARE STL Adoption Center located at 2700 Walnut Pl, 63103. Simply ask for more details about the particular animal you are interested in.

Or, how about these Mastiffs in cities near Saint Louis, Missouri

These Mastiffs are available for adoption close to Saint Louis, Missouri.
We'll also keep you updated on Don Julio's adoption status with email updates.
Photo of Don Julio

Don Julio

Mastiff American Staffordshire Terrier

Male, 3 yrs 1 mo
East ST Louis, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Thank you to a wonderful volunteer, Don Julio's adoption fee is waived!! Looking for a loyal companion who will steal your heart with his affection? Look no further than Don Julio! This handsome brindle boy is as sweet as they come and is ready to shower his forever family with love and cuddles. Don Julio's love for his people knows no bounds, and he'll make sure you know it every single day. Whether it's with gentle nuzzles, wagging his tail with excitement, or giving those irresistible puppy dog eyes, Don Julio knows just how to melt your heart. One of Don Julio's most endearing features is his incredibly soft ears, perfect for petting and snuggling. His affectionate nature combined with his adorable appearance makes him an irresistible addition to any household. If you're searching for a furry friend who will bring warmth and joy into your life, Don Julio is the perfect match for you. With his loving disposition and charming personality, he's sure to become a beloved member of your family in no time. If you're interested in meeting Don Julio, please visit our website to learn about our adoption process and to fill out an application. All of our dogs and cats will be microchipped, spayed or neutered, and up-to-date on vaccinations at the time of adoption. For more info visit www.gatewaypets.org/adopt To view other adoptable pets from our shelter, please visit, www.gatewaypets.org/adopt Gateway Pet Guardians is proud to offer a variety of mixed breed dogs available for adoption. However, please keep in mind that we rarely know the genetic background of the animals we rescue and, as such, we cannot guarantee the exact breed combinations found within this dog. However, we do not know his/her actual genetic makeup. Just know that this dog is probably a variety of several different breeds that have combined to create one very amazing and unique animals.
We'll also keep you updated on Carson Foster's adoption status with email updates.
Photo of Carson Foster

Carson Foster

Mastiff Mixed Breed (Medium)

Male, 3 yrs 1 mo
East ST Louis, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Meet Carson Foster, a superstar pup just like his namesake! This gentle guy is amazing with kiddos and loves playing with his canine friends. But what he really excels at is snuggling-he'll literally melt into you! Adopt Carson today, and watch all your worries melt away with this sweet boy by your side. If you are interested in a meet and greet for adoption for Carson Foster, please fill out an application on our website at www.gatewaypets.org/adopt. If you are interested in learning more about Carson Foster or the adoption process at GPG, please email placement@gatewaypets.org All of our dogs and cats will be microchipped, spayed or neutered, and up-to-date on vaccinations at the time of adoption. For more photos of Carson Foster, follow us on Facebook Gateway Pet Guardians and Instagram @gatewaypets ... #gpgCarsonFoster. To view other adoptable pets from our shelter, please visit, www.gatewaypets.org/adopt. Gateway Pet Guardians is proud to offer a variety of mixed breed dogs available for adoption. However, please keep in mind that we rarely know the genetic background of the animals we rescue and, as such, we cannot guarantee the exact breed combinations found within this dog. However, we do not know his/her actual genetic makeup. Just know that this dog is probably a variety of several different breeds that have combined to create one very amazing and unique animals.
We'll also keep you updated on Notorious D.O.G's adoption status with email updates.
Photo of Notorious D.O.G

Notorious D.O.G

Mastiff Rottweiler

Male, 1 yr 6 mos
East ST Louis, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Meet Notorious D.O.G! He is new to our rescue and looking for a family to call his own! If you are interested in a meet and greet for adoption for Notorious D.O.G , please fill out an application on our website at www.gatewaypets.org/adopt. If you are interested in learning more about Notorious D.O.G or the adoption process at GPG, please email placement@gatewaypets.org All of our dogs and cats will be microchipped, spayed or neutered, and up-to-date on vaccinations at the time of adoption. For more photos of Notorious D.O.G, follow us on Facebook Gateway Pet Guardians and Instagram @gatewaypets ... #gpgNotoriousD.O.G. To view other adoptable pets from our shelter, please visit, www.gatewaypets.org/adopt. Gateway Pet Guardians is proud to offer a variety of mixed breed dogs available for adoption. However, please keep in mind that we rarely know the genetic background of the animals we rescue and, as such, we cannot guarantee the exact breed combinations found within this dog. However, we do not know his/her actual genetic makeup. Just know that this dog is probably a variety of several different breeds that have combined to create one very amazing and unique animal.
We'll also keep you updated on Felix's adoption status with email updates.
Photo of Felix

Felix

Mastiff Labrador Retriever

Male, 4 yrs 3 mos
St. Peters, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
FELIX Meet Felix: A Gentle Giant in Need of a Forever Home Felix is a Mastiff Lab mix with a sleek black coat and a heart as big as his 75-pound frame. This affectionate, playful and friendly boy is good with dogs, and is as obedient as they come. Plus, he's a pro at car rides! He knows his commands of: Sit, stay, down, and speak. Appears to be potty trained because he has had no messes in his kennel. He believes he is a lap dog! Sadly, after spending years in a loving home, Felix's world was turned upside down when his family had a life change and brought him and his brother to the Humane Society. Thankfully, because Felix was originally adopted from us, we were able to bring him back to safety. Unfortunately, his brother wasn't as lucky-due to shelter overcrowding, we are uncertain of his fate. Felix now needs a home that will love him forever and show him that there are good people out there who won't let him down. Let's find this sweet boy the family he truly deserves-a family that will be his forever. Please help us spread the word and find Felix his true forever home. He's been through so much, and he deserves nothing but the best. Want to be Felix's hero and show him the love he deserves? Apply here to adopt him and set up a meet and greet: https://fox2now.com/video/tail-waggin-tuesday/9948276/

These pups are in Saint Louis, Missouri too!

Below are our newest added Mastiffs available for adoption in Saint Louis, Missouri. To see more adoptable Mastiffs in Saint Louis, Missouri, use the search tool below to enter specific criteria!
We'll also keep you updated on Mae's adoption status with email updates.
Photo of Mae

Mae

Bullmastiff

Female, Adult
St Louis, MO
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
BASICS: Bullmastiff / female / 4 years old CHILDREN: Yes, older than 5 due to size CATS: Unknown DOGS: Male dogs over 30lbs, with slow introduction and supervision PERSONALITY: Medium energy level; Very sweet and affectionate; Enjoys taking naps in the sun or on the couch, exploring outdoors in the yard, walking the neighborhood and LOVES hanging out with people. Loves men! TRAINING: Housebroken, leash trained, knows basic obedience and how to use a dog door SPECIAL NEEDS: None VETTING: Fully vaccinated, spayed, microchipped Ready to give Mae the forever home of her dreams? Fill out our Adoption Application, located The Bullpen Way Station & Sanctuary under the 'work with us' tab. We highly recommend that our potential adopters fill out an online application as soon as possible, as it greatly expedites the process of finding the right dog for your situation. Our dogs are available for adoption nationwide but preference is given to adopters willing to do an in-person meeting. Please understand that our dogs are not adopted on a first-come, first-served basis, but rather we strive for a "perfect placement" so we know that they will not be failed again.

Search for a Mastiff puppy or dog

Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Saint Louis, Missouri.

Mastiff puppies and dogs in nearby cities

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Related breeds in Saint Louis, Missouri

Mastiff shelters & rescues in Saint Louis, Missouri

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

Here are a few organizations closest to you:

Shelter

4.8 miles

Animal Protective Association of Missouri

1705 South Hanley Road, St. Louis, MO 63144

Pet Types: cats, dogs, rabbits, small animals

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Shelter

10.6 miles

CARE STL

2700 Walnut Place, St. Louis, MO 63103

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

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Rescue

14.2 miles

Gateway Pet Guardians

725 N 15th St, East ST Louis, IL 62205

Pet Types: cats, dogs

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Rescue

20.7 miles

Stray Paws Rescue

7055 Mexico Rd., Box 1663, St. Peters, MO 63376

Pet Types: cats, dogs

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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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