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Mastiff puppies and dogs in Belvidere, Illinois

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

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Adopt a Mastiff near you in Belvidere, Illinois

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Or, how about these Mastiffs in cities near Belvidere, Illinois

These Mastiffs are available for adoption close to Belvidere, Illinois.
We'll also keep you updated on Tara's adoption status with email updates.
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Tara

Mastiff German Shepherd Dog

Female, 2 mos
Marengo, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered,
Story
Sweet girl looking for her furever home
We'll also keep you updated on Shy's adoption status with email updates.
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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/March 13, 2026, 6:49 pm
We'll also keep you updated on Duke's adoption status with email updates.
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Duke

Mastiff

Male, Adult
Island Lake, IL
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Looking for a gentle giant to complete your family? Say hello to Duke, an adorable two-year-old Mastiff mix who's ready to fill your home with love and joy! This big-hearted boy has so much affection to give and is eagerly waiting for his forever family to come along. Inside the home, Duke is already a model citizen in many ways. He's fully house broken, comfortable in his crate, and absolutely adores being around his humans. Like many young dogs his size, he's still growing into his massive paws and personality. Duke would benefit from some continued reinforcement of his basic manners - he's quite strong on leash and gets so excited during playtime that he sometimes jumps up or gets a bit mouthy when his enthusiasm takes over. Duke would thrive with a family who has previous large breed experience and is willing to invest some time into his continued training. Due to his size and exuberance, we're looking for a home without children under 10 years old. He's not trying to be rambunctious - he just doesn't always realize how big he is! When meeting new dogs, Duke can be a bit unsure of himself initially and can be slightly reactive. The good news is that after a quick, proper introduction, he does wonderfully with other canines, especially female dogs. He does get excited around toys and food, so clear boundaries are important. Surprisingly, this big boy LOVES cats and would happily share his space with a dog-savvy feline friend! If Duke sounds like the perfect addition to your family, please contact us today. This lovable boy can't wait to meet you and show you just how much love he has to give! To ask about Duke, please contact us directly by calling 847-338-3252 or emailing info@redemptionroadinc.org. _____ See what's new with our rescue including updates on our animals and upcoming events:  https://lnk.bio/redemptionroadinc Facebook: https://www.facebook.com/R4inc/ Instagram: @redemptionroadinc Our trainer's Instagram:  @fullcircledogtrainer March 7, 2026, 7:33 pm
We'll also keep you updated on Sam's adoption status with email updates.
Photo of Sam

Sam

Mastiff Mixed Breed (Large)

Male, 3 yrs 11 mos
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.
We'll also keep you updated on Leona's adoption status with email updates.
Photo of Leona

Leona

Mastiff

Female, Young
Vernon Hills, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Oh, Leona....where do we start? It is evident that this poor girl was loved at one point in her short life. She knows how to sit on command, give paw, and does zoomies when she's excited. We're not sure where things went wrong for her, but she's with us now and is learning to trust again. She's on the petite side and is so funny when she plays. She, unfortunately, is not a fan of other dogs so she'll need to be the only one in the home. Email us at bombshellbullies@hotmail.com to see if Leona would be a good match for you!
We'll also keep you updated on Amelia's adoption status with email updates.
Photo of Amelia

Amelia

English Mastiff

Female, 3 yrs
Oswego, IL
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs,
Story
Hi, I’m Amelia and I’m new to the rescue.  I'm on a medical hold while I receive some needed treatment.  Soon I'll be ready for my forever home so please click adopt to get your application approved. Dog’s Name: Amelia Location: Wood River, IL Date of Birth: 03/11/2023 Gender: Female Breed: English Mastiff Color: Fawn Dog's Weight: Gets along with: Dogs?: All Dogs  Cats?:  Unknown Kids?: Unknown Until the profile is removed from the public’s view, this dog is considered available for adoption. To apply to adopt from Just Giants Rescue fill out an online. All approved applications are good for 12 months. Meet and greets can be scheduled with approved adopters. All dogs adopted from Just Giants Rescue are up to date on vaccines (Rabies, DHPP, Bordetella), microchipped, and spayed or neutered. Some exceptions may apply. All adoption fees are non-refundable; Just Giants is a NFP 501(c)3 organization. Meet and greets can be scheduled with approved adopters. Transportation from the foster home to the adopter is the responsibility of the adopter to coordinate. Just Giants does not adopt outside of the continental US. To apply to adopt from Just Giants Rescue, you can visit https://justgiants.org/adopt/ to fill out an application. All dogs adopted from Just Giants Rescue are up to date on shots, microchipped, and spayed or neutered. Some exceptions may apply. For more information about Just Giants or the dogs we rescue, please visit justgiants.org. All puppies will be adopted with age-appropriate vaccines and a spay/neuter contract. Adoption Fees $750 - 12 months or younger; $150 snip it ticket  $600 - 1 to 3 years old $500 - 4 to 6 years old $300 - 7+ years old; includes senior blood panel ##2680638##

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Mastiff shelters & rescues in Belvidere, Illinois

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

Here are a few organizations closest to you:

Rescue

11.6 miles

Ricky's Rascals

101 N State St, Marengo, IL 60152

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

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Shelter

22 miles

Animal House Shelter, Inc

13005 Ernesti Rd, Huntley, IL 60142

Pet Types: cats, dogs

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Rescue

32.8 miles

Redemption Road Rescue Rehab Inc.

Island Lake, IL 60042

Pet Types: cats, dogs

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Rescue

36.9 miles

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

Barrington Hills, IL 60010

Pet Types: cats, dogs

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Rescue

45.1 miles

Bombshell Bullies Pit Bull Rescue

P.O. Box 5122, Vernon Hills, IL 60061

Pet Types: dogs

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Rescue

49.4 miles

Angel Dog Alliance

Naperville, IL 60540

Pet Types: dogs

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Rescue

49.4 miles

Just Giant Rescue Inc - Illinois Chapter

PO Box 358, Oswego, IL 60543

Pet Types: dogs

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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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