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Mastiff puppies and dogs in South Beloit, Illinois

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

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Adopt a Mastiff near you in South Beloit, Illinois

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These Mastiffs are available for adoption close to South Beloit, Illinois.
Photo of Shy

Shy

Mastiff Labrador Retriever

Female, Young
Huntley, IL
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
I am 53 lbs, and I am looking for my forever home. Adoption Donation: $450 Shy is a beautiful girl with a stunning brindle coat and a gentle, sensitive soul. True to her name, she can be a little shy at first and may need a minute to warm up to new people. But once she feels safe, her sweet personality shines through. Shy loves affection and will happily lean into you for pets once she trusts you. She has such a tender heart and just wants to be close to someone who cares about her. She came to us when her owner sadly became homeless, and the change has been scary for her. Shy is simply looking for a safe, loving home again — a place where she can relax, feel secure, and be someone’s beloved companion. With a little patience and kindness, Shy will reward you with quiet loyalty and lots of love. All dogs are microchipped, neutered, current on all vaccines, heartworm tested (if age appropriate), and up-to-date on preventatives at the time of adoption. All household members and any dogs from the household need to be present to be able to adopt. A photo ID will be required at the time of adoption. Appointments are recommended. All applications are considered general. Specific animals are NOT put on hold for adoption. When you visit, our adoption counselors will be able to make suggestions based on the type of pet you are looking for and help you find the best fit for your family. Animal House Shelter cannot guarantee the breeds of the adoptable animals. The animals are posted on the website as the breed or breed mix based on their physical characteristics they most resemble. We also cannot guarantee the ages of our adoptable animals or how large puppies will be when fully grown. We look forward to seeing you soon! Link to the Adoption Application:  https://www.animalhouseshelter.com/adopt/adoption-application/ Animal House Shelter 13005 Ernesti Road Huntley, IL 60142 847-961-5541 phone 847-961-5537 fax Open: Sunday-Friday from 11 AM to 7 PM Saturday from 9 AM to 7 PM Connect With Us: Like Us On Facebook ! Watch Us On YouTube ! Follow Us On Twitter ! Adoption Application: https://www.animalhouseshelter.com/adopt/adoption-application/ Adopt a Pet: https://www.animalhouseshelter.com/adopt/ Directions to Shelter: https://www.animalhouseshelter.com/visit/ Adoptable Dogs: https://www.animalhouseshelter.com/dogs/ Adoptable Cats: https://www.animalhouseshelter.com/cats/June 6, 2026, 12:56 am
Photo of King

King

Mastiff

Male, Adult
Jefferson, WI
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered, Shots are up-to-date,
Story
6 years old (estimated) Neutered Male  106 lbs. Has done well with other dogs  No known experience with cats or kids  Meet King, an extra-large teddy bear with an even bigger heart! This handsome boy loves attention and is happiest when he's spending time with his people, soaking up pets and showing off his signature big smile. King enjoys exploring the outdoors, especially when he can take his time sniffing around and checking out all the interesting scents along the way. He also likes going for walks, although King prefers to keep them on his own terms. When he's decided he's had enough, he'll happily sit down and anchor himself right where he is, letting everyone know the adventure is over for the day. With his lovable personality, laid-back attitude, and charming grin, King is sure to bring plenty of smiles and laughter to the lucky family who welcomes him home. The online adoption listing websites require that we choose a predominant breed or breed mix for our dogs. Visual breed identification in dogs is unreliable so for most of the dogs we are only guessing at predominant breed or breed mix. We encourage you to select your new companion by considering each dog's individual personality and pet qualities instead of relying on a breed label that is only a guess.June 6, 2026, 7:58 am
Photo of Lilo

Lilo

Mastiff Mixed Breed (Medium)

Female, 8 yrs 4 mos
Madison, WI
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered,
Story
Lilo is a big, sweet-hearted Mastiff who is ready to bring love and loyalty to her forever family! This gentle giant has a calm demeanor and is as friendly as they come. Lilo has been tested with other dogs and did wonderfully, and when walking past cats, she didn’t react at all – so she’s great with both other animals and people. While Lilo may be a little shy at first, her love for human interaction and treats quickly help her open up. She’s a big fan of cuddles and enjoys spending quality time with her people. With some patience, she’ll become your ultimate snuggle buddy and a loyal companion for life. Lilo is looking for a home where she can feel safe, loved, and spoiled with attention. She’s a calm, affectionate dog who would thrive in a household where she’s given the time to adjust and get comfortable. Lilo loves human companionship, and she’ll quickly show you how much she appreciates your kindness – especially if there are some tasty treats involved! If you’re ready to welcome this sweet, giant girl into your heart, Lilo can’t wait to meet you and start her new chapter with you! 🐶💕 All of our dogs are dewormed, spayed/neutered, microchipped, up to date on age appropriate vaccines, and heartworm tested if they are old enough. If you're interested in adopting, please fill out an application on our website at https://www.sftsrescue.org/adoptable-dogs
Photo of Sir

Sir

Mastiff Mastiff

Male, Adult
Round Lake, IL
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Sir is a great, gentle giant. He is great with kids and is very friendly. Sir really believes he is a puppy and likes to act like one. We had another dog, a pomeranian, and they were great together.The pomeranian passed, and I started to have children. We purchased Sir when he was 8 weeks old in Aug of 2021. He was born on June 26, 2021. We honestly want the new home to be a dog lover and to take care of Sir. We can't keep him, not because we don't want him, but our family's health is important. I gave birth, and 2 of my children got allergies, and my husband developed some as well. It's gotten hard to keep him and try to handle my family's health issues.My baby is not even a year old, so only so much can be done to help ease her.
Photo of Sam

Sam

Mastiff Mixed Breed (Large)

Male, 4 yrs 1 mo
Barrington Hills, IL
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Not good with kids, Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Meet Sam! Sam is a very handsome pup, estimated at about 3 years old. He’s thought to be a Mastiff Mix, but, rather small for the breed. Sadly, Sam found himself at an overcrowded noisy animal control facility down south. He deserves a forever home and family of his own, and we want to help him get there!! This precious pup absolutely loves people and is good with older kids who are respectful of dogs. We expect he is good with lower energy dogs. Dogs who are too active might scare him and cause him to react. Sam absolutely loves belly rubs, and treats too! He's a little rough around the edges in terms of training but clearly is eager to learn. Sam is in overall good physical shape however he does have some vision issues causing him to sometimes miss things coming his way….this is why we expect he’d be scared by higher energy dogs, and high-activity youngsters. Sam is neutered, up to date on vaccinations, microchipped, heartworm negative and on preventative. We would still like to get Sam to an eye specialist for a comprehensive examination of his eyes/vision. If you’d like to add Sam to your family, please contact BAARKDogRescue@gmail.com or 847-852-0895.
Photo of Cannoli

Cannoli

Mastiff Boxer

Male, 2 mos
South Elgin, IL
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
Story
Hi, I'm Cannoli! Thanks for checking me out! I know my cute face is hard to resist, but here's the scoop: I'll need a lot of your time and attention as I grow up into the amazing adult dog I'm destined to be! I'm looking for a forever family that will help me with socialization, training (yes, that includes house training!), and plenty of exercise. And let's not forget the chewing and teething-I'm still learning what's okay (and what's definitely not okay) to put in my mouth. So, be ready for some puppy-proofing! Don't forget those vet visits! I'll need to stay up to date on my boosters and vaccines, which means a few trips to see my favorite vet in the first few months. But trust me, all that effort will be worth it when you experience the endless love, puppy kisses, and pure joy I'll bring into your life. So, if you're up for the challenge and the fun, why not come meet me in person? Stop by during our adoption hours. For more details, email info@ahconnects.org or give us a call at 847-697-2880 x: 0. The friendly folks here will be happy to answer all your questions! Can't wait to meet you and start our adventure together! All of our dogs and puppies go home spayed or neutered, microchipped, and heartworm tested (for dogs 7 months and older). They are also up to date on core vaccines, as well as heartworm, flea, and tick preventatives. Each adoption includes a 3.5-pound bag of dog or puppy food and a free vet exam at one of our participating veterinary partners.

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Mastiff shelters & rescues in South Beloit, Illinois

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

Here are a few organizations closest to you:

Shelter

33.9 miles

Animal House Shelter, Inc

13005 Ernesti Rd, Huntley, IL 60142

Pet Types: cats, dogs

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Shelter

37.6 miles

Humane Society of Jefferson County

W6127 Kiesling Rd, Jefferson, WI 53549

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

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Rescue

44.2 miles

Shelter from the Storm Animal Rescue

1602 Blossom Ln, Madison, WI 53716

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

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Rescue

46.8 miles

Barrington Area Animal Rescue & Kennels NFP (BAARK Dog Rescue)

Barrington Hills, IL 60010

Pet Types: cats, dogs

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Shelter

48 miles

Anderson Humane

1000 S. La Fox St., South Elgin, IL 60177

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

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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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