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Mastiff puppies and dogs in Webster Groves, Missouri

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

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Adopt a Mastiff near you in Webster Groves, Missouri

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 Webster Groves, Missouri

These Mastiffs are available for adoption close to Webster Groves, Missouri.
We'll also keep you updated on WALTER's adoption status with email updates.
Photo of WALTER

WALTER

Mastiff

Male, 5 yrs
St. Louis, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Walter is friendly, outgoing, and his happiness is contagious. He walks well on a leash and seems to be potty trained. He knows sit, loves to play with squeekie toys, and wants all the pets.
We'll also keep you updated on Bellatrix aka "Willow Eliza"'s adoption status with email updates.
Photo of Bellatrix aka "Willow Eliza"

Bellatrix aka "Willow Eliza"

Mastiff

Female, 8 yrs 1 mo
St. Louis, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Bella is big and beautiful with a personality to match. This six-year-old mastiff mix girl adores people, snuggles, pets, and attention. She is spayed and up-to-date on all her medical care and is heartworm-negative. Bella is a big girl, approximately 65 pounds, so while she is very good with people, she would be best with older kids who can keep up with her size. She is house-trained, and a fenced yard would be best since Bella is a large dog and likes to play. Bella likes her people so much she doesn't want to share and would do best as the only dog in her home. To meet Bella, visit istodaymydayrescue.org to fill out an application. Her adoption fee is $100.
We'll also keep you updated on Chili Mac's adoption status with email updates.
Photo of Chili Mac

Chili Mac

Mastiff

Male, Puppy
St Louis, MO
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Chili Mac!    This 11-month-old Cane Corso is a big, lovable goofball with a heart as giant as his paws! Chili Mac is equal parts cuddle bug and class clown — he’ll make you laugh one minute and melt into your lap the next.   He can be a little shy when meeting new people, but once he decides you’re cool, he’s all in! He’s great with dogs big and small (seriously — from 6 lbs to 120 lbs!), crate and potty trained, and already knows some basic commands.   Due to Chili Mac's size and clumsiness, he would do best in a home with older children. He would also be best with someone who has breed/guardian experience given some mouthy behaviors which are normal for the breed.   Chili Mac would love an active home with another dog friend or a human adventure buddy. Whether you’re hiking, road-tripping, or just lounging on the couch- as long as you don’t mind a little drool, he’s ready to be your ride-or-die!    If interested, please  complete the  Adoption Application  on our website at  www.NeedyPaws.org  and we will contact you.  Adopters must live within an hour’s drive of St. Louis, MO. Our $295 adoption fee includes up-to-date vaccinations, heartworm testing and preventative, spay/neuter and microchip. We are a 100% foster-based rescue and all of our dogs live in approved foster homes. We are dedicated to finding the best Forever Homes, and will perform home visits and conduct veterinarian and reference checks for each potential adopter.Visit this organization's web site to see any additional information available about this pet.November 12, 2025, 2:35 pm
We'll also keep you updated on Sage's adoption status with email updates.
Photo of Sage

Sage

Mastiff

Female, Adult
Saint 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
Hi! Sage is what I believe is an iltalian mastiff mix of some sort. Her exact breed is unknown. Her birthday is 2/24/23. She has never resided in a shelter. She was fostered for 2 months through the Stray Reacue, then adopted by me. I am looking to rehome her solely because she is a very social dog who thrives in a home with multiple humans/dogs. Given my sudden life change, I am no longer able to provide that for her. I have noticed her a bit less happy in a home with just myself and her. Please reach out with any additional questions/concerns!
We'll also keep you updated on Gus's adoption status with email updates.
Photo of Gus

Gus

Mastiff Mixed Breed (Large)

Male, 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
Meet Gus! Gus is a charming 3-year-old mastiff mix with a heart as big as his paws. This gentle giant is friendly, outgoing, and absolutely loves people. He gets along wonderfully with other dogs and kids—just be prepared for a little “bull in a china shop” energy when he gets excited! Gus is house-trained, kennel-trained, and making great progress with his leash skills. He’s also an excellent car buddy, happy to settle in and enjoy the ride. If you’re looking for a lovable, goofy companion who brings joy wherever he goes, Gus might just be your perfect match! https://www.shelterluv.com/matchme/adopt/NAF/Dog
We'll also keep you updated on Compton 's adoption status with email updates.
Photo of Compton

Compton

Mastiff Labrador Retriever

Male, 2 yrs 11 mos
St. Louis, MO
Size
(when grown) -
Details
Good with dogs, Not good with cats, House-trained, Spayed or Neutered,
Story
Compton is a big-hearted, laid-back pup who’s been through a lot and is now searching for the perfect home to call his own. Found abandoned in a park back in January with a collar and lead still attached, it’s clear that he was once someone’s pet—but now he’s looking for a family that truly understands him. Shelter life has been stressful for him, making his search for a loving home even more urgent. While he’s an absolute sweetheart, he thrives best in a calm environment without young kids, as their energy and unpredictability seem to overwhelm him. Otherwise, Compton is truly the bestest boy! This gentle lug is fully crate-trained—though a little hesitant to go in at first, a toy will convince him, and once inside, he settles quietly. He’s also potty trained and will patiently sit by the door to let you know when it’s time to go out. A dream passenger in the car, Compton enjoys gazing out the window or relaxing for the ride. He walks beautifully on a loose leash and has done well with the few dogs he’s met, suggesting he could be a great canine companion with proper introductions. At his core, Compton is just a big teddy bear who deserves all the love in a peaceful, understanding home. If you’re looking for a loyal and affectionate best friend, Compton is ready to be your perfect companion.

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Mastiff puppies and dogs in nearby cities

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Related breeds in Webster Groves, Missouri

Mastiff shelters & rescues in Webster Groves, Missouri

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

Here are a few organizations closest to you:

Shelter

1.9 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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Rescue

3.7 miles

Is Today My Day Rescue

St. Louis, MO 63139

Pet Types: dogs

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Rescue

5.3 miles

Needy Paws Rescue

St Louis, MO 63125

Pet Types: dogs

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Rescue

6.9 miles

Nala and Friends Dog Rescue - ST. LOUIS transport

St. Louis, MO 63118

Pet Types: dogs

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Shelter

8.1 miles

CARE STL

2700 Walnut Place, St. Louis, MO 63103

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

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Shelter

9.4 miles

Humane Society of Missouri - Maryland Heights

11660 Administration Dr., (Page Ave. and Schuetz Road), Maryland Heights, MO 63146

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

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Rescue

9.4 miles

Gods Dogs Rescue of TX for St Louis Transport Stop

St Louis, MO 63146

Pet Types: dogs

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Shelter

12.8 miles

Helping Strays of Monroe County

4221 Hanover Rd., Columbia, IL 62236

Pet Types: cats, dogs

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Rescue

15.1 miles

Charming Pet Rescue - MO Transport Stop

St. Louis, MO 63303

Pet Types: dogs

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Shelter

19.1 miles

Belleville Area Humane Society

1301 S. 11th St., Belleville, IL 62223

Pet Types: cats, dogs

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Looking for a specific shelter or rescue?

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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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