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Mastiff puppies and dogs in Waterloo, Illinois

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

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Adopt a Mastiff near you in Waterloo, Illinois

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 Waterloo, Illinois

These Mastiffs are available for adoption close to Waterloo, Illinois.
We'll also keep you updated on Hammy Bean's adoption status with email updates.
Photo of Hammy Bean

Hammy Bean

Mastiff Mixed Breed (Medium)

Male, 2 yrs 1 mo
Belleville, IL
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
Story
Hammy Bean, or just "Hammy" to his friends, is an energetic young guy with a big heart and an even bigger personality! This playful pup is always ready to bring the fun, whether it’s zooming around the yard, showing off his goofy antics, or charming you with his sweet, silly grin. Hammy’s love language? Snacks! Treats are the way to his heart, and he’ll happily show off his best tricks for a tasty reward. With his boundless energy and lovable spirit, Hammy would be the perfect match for an active family who’s ready to keep up with his playful nature. If you’re looking for a goofy, snack-obsessed buddy to keep you smiling, Hammy Bean is ready to be your new best friend! Come meet him and see just how big his heart (and his head) really are!
We'll also keep you updated on Marvel's adoption status with email updates.
Photo of Marvel

Marvel

Mastiff

Male, 3 yrs 5 mos
St. Louis, MO
Size
(when grown) -
Details
-
Story
Meet Marvel, Your New Best Friend! Marvel is a 3 year old Mastiff mix who is looking for his furever home. He is a gentle giant who was found wandering during a thunderstorm, seeking safety and comfort. While we don't know much about where Marvel came from, we do know that he arrived with a heart of gold and a massive smile that is sure to melt your heart. Marvel loves to play with other dogs and is always down for snuggles and a good chew toy, making him the perfect cuddle buddy after a long day. Marvel is crate trained and housebroken. He knows basic commands, but can get a little excited when meeting someone new-he might just jump up for a hug! His friendly nature makes every introduction a joyful occasion. Marvel loves to go for walks and is good in the car. He gets along great with other dogs and even smaller animals like cats and chickens! He's always ready to make new friends and share his love with everyone.
We'll also keep you updated on Valentino's adoption status with email updates.
Photo of Valentino

Valentino

Mastiff Labrador Retriever

Male, 6 mos
St. Louis, MO
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
Are you looking for a life-long love? I'm sure to make your heart skip a beat with these longing eyes! Hey there, I'm Valentino! I've had a rough start in life as my owners moved and decided to leave my brother and I behind. We don't let it bother us as we know we will find our forever homes soon. We look to be a mix of Mastiff/Lab but the shelter isn't sure. Will you paw-lease adopt me?  If you're interested in adopting me, fill out an adoption application online at www.polkcountyhumanesociety.org/adopt where you will also find a link to reserve me for an appointment. Some pets are in foster homes or may already have an appointment scheduled, so the appointment is important to make sure I will be available to meet you when you come. Polk County Humane Society is located in Bolivar, Missouri, but also makes transports to the Denver, CO, Des Moines, IA and St. Louis areas twice monthly. For potential adopters in those areas, we can do a virtual visit using FaceTime or another app. Just request an appointment using the same link, but note that you want the visit to be virtual. We will call you at the time of the visit once it is confirmed. For long distance transports to Colorado and Iowa, there is an additional $100 fee to cover the cost of the transport ($65) and a health certificate from a veterinarian ($35). For transports to St. Louis, the additional fee is $50 to help cover gas. Going that last mile home for our sweet pets! All of our pets are neutered or spayed, have vaccinations appropriate for their age, treated with flea/tick/heartworm prevention, dewormed and dogs are also microchipped. #adoptdontshop ##2287925##
We'll also keep you updated on Romeo's adoption status with email updates.
Photo of Romeo

Romeo

Mastiff Labrador Retriever

Male, 6 mos
St. Louis, MO
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
Are you looking for a life-long love? I'm sure to make your heart skip a beat with these longing eyes! Hey there, I'm Romeo! I've had a rough start in life as my owners moved and decided to leave my brother and I behind. We don't let it bother us as we know we will find our forever homes soon. We look to be a mix of Mastiff/Lab but the shelter isn't sure. Will you paw-lease adopt me?  If you're interested in adopting me, fill out an adoption application online at www.polkcountyhumanesociety.org/adopt where you will also find a link to reserve me for an appointment. Some pets are in foster homes or may already have an appointment scheduled, so the appointment is important to make sure I will be available to meet you when you come. Polk County Humane Society is located in Bolivar, Missouri, but also makes transports to the Denver, CO, Des Moines, IA and St. Louis areas twice monthly. For potential adopters in those areas, we can do a virtual visit using FaceTime or another app. Just request an appointment using the same link, but note that you want the visit to be virtual. We will call you at the time of the visit once it is confirmed. For long distance transports to Colorado and Iowa, there is an additional $100 fee to cover the cost of the transport ($65) and a health certificate from a veterinarian ($35). For transports to St. Louis, the additional fee is $50 to help cover gas. Going that last mile home for our sweet pets! All of our pets are neutered or spayed, have vaccinations appropriate for their age, treated with flea/tick/heartworm prevention, dewormed and dogs are also microchipped. #adoptdontshop ##2287932##
We'll also keep you updated on Serena's adoption status with email updates.
Photo of Serena

Serena

Mastiff

Female, Puppy
Fenton, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats,
Story
Serena(Williams) was born on 11/17/24. She is going to be a good sized girl considering her dad is a mastiff mix, and momma is a country mutt! She LOVES to play! She would love to have another playful pup in the house! She is getting spayed on 2/4, but can be spoken for before then.January 22, 2025, 12:50 pm
We'll also keep you updated on Shaq's adoption status with email updates.
Photo of Shaq

Shaq

Mastiff

Male, Puppy
Fenton, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats,
Story
Shaq(O’Neal) was born on 11/17/24. His dad is a mastiff mix, and mom is a country mutt. He will be a good sized boy! He absolutely LOVES to play with his sister, so it would be great if he could have another playful pup friend in his new home. He is getting neutered on 2/4, but can be spoken for before then. January 22, 2025, 1:12 pm

Search for a Mastiff puppy or dog

Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Waterloo, Illinois.

Mastiff puppies and dogs in nearby cities

Related breeds in Waterloo, Illinois

Mastiff shelters & rescues in Waterloo, Illinois

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

Here are a few organizations closest to you:

Shelter

15.9 miles

Belleville Area Humane Society

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

Pet Types: cats, dogs

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Rescue

18.1 miles

Nala and Friends Dog Rescue - ST. LOUIS transport

St. Louis, MO 63118

Pet Types: dogs

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Shelter

19.6 miles

Polk County Humane Society - St. Louis Transport

10900 Sunset Hills Plaza, St. Louis, MO 63127

Pet Types: cats, dogs

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Rescue

19.9 miles

4 Paws 4 Rescue

Fenton, MO 63026

Pet Types: cats, dogs, rabbits, small animals

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Rescue

20.2 miles

Is Today My Day Rescue

St. Louis, MO 63139

Pet Types: dogs

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Shelter

20.6 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

35.2 miles

Charming Pet Rescue - MO Transport Stop

St. Louis, MO 63303

Pet Types: dogs

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Shelter

39.6 miles

St Charles County Humane Services

4850 Mid Rivers Mall Dr, St. Peters, MO 63376

Pet Types: cats, birds, dogs, 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

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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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