Mastiff Adoption in Illinois: Mastiff Puppies for Sale in Illinois

Adopt a Mastiff near you in Illinois

Below are our newest added Mastiffs available for adoption in Illinois. To see more adoptable Mastiffs in Illinois, use the search tool below to enter specific criteria!

DOODLEBOP

Mastiff/Husky

Male, 3 yrs

Belleville, IL

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Story

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Mellow

Mastiff/Mixed Breed (Large)

Male, 4 yrs

East ST Louis, IL

Size

(when grown) Med. 26-60 lbs (12-27 kg)

Details

Story

Meet Mellow! 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 Mellow, please fill out an application on our website at www.gatewaypets.org/adopt. If you are interested in learning more about Mellow 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 Mellow, follow us on Facebook Gateway Pet Guardians and Instagram @gatewaypets ... #gpgMellow. 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.

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Blaze

Mastiff

Male, Young

Ottawa, IL

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Good with kids, Not good with dogs, Not good with cats, House-trained,

Story

We have had Blaze since he was a puppy. He is a really good dog but just too big for this house, and he his too rough with my other two dogs since he has gotten older, hes just soo big! He really needs a lot of room to run, my yard and house is just too small. Great dog!!

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Achilles

Mastiff

Male, Young

Zion, IL

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Not good with kids, Good with dogs, Needs experienced adopter, House-trained,

Story

Hello, my name is Achilles, my family can no longer keep me. I was rescued from a breeder that was abusing me. And now that I am so big my family can not take care of me. I am a good boy but I do like to play fight and my little sister is scared of me because I am to big and I hurt her trying to play. I am just looking for someone to cuddle me and take me on Long walks, mom and dad are working all the time. And they can not stay home with me.

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Lauren

Mastiff

Female, 8 mos

Northbrook, IL

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Story

Meet Lauren – A Gorgeous Mastiff Pup with Big Potential! 🐾💪 Say hello to Lauren, an 8-month-old mastiff with a heart as big as her paws! This stunning girl comes to us from the Blue Island Police Department, and now she’s ready to leave her working-dog roots behind and start a brand-new chapter as a beloved family companion. Lauren is still very much a puppy—curious, energetic, and full of life. She’s looking for a confident, experienced owner who understands the mastiff breed and is ready to invest the time, training, and commitment it takes to help her grow into the incredible dog she’s meant to be. With the right guidance, Lauren is sure to thrive. She’s smart, strong-willed, and absolutely stunning, but she’ll need structure, patience, and positive reinforcement to channel all that youthful energy in the right direction. If you’ve got the experience and dedication to raise a large-breed puppy into a well-mannered adult, Lauren just might be your perfect match. This girl has the potential to be a loyal, loving guardian and lifelong best friend. Come meet Lauren today and see if you’re the confident leader she’s been waiting for. 🐶❤️

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Goliath HW +

Mastiff

Male, 7 yrs 1 mo

Northbrook, IL

Size

(when grown) -

Details

Story

Meet Goliath! 🐾 At 7 years old, Goliath is a gentle giant with a heart just as big as his paws. This senior Mastiff has been through a lot, but he's ready to settle down and enjoy the peaceful, loving life he’s always deserved. Don’t let his size fool you — Goliath is a sweet, soulful boy who’s all about quiet moments, soft blankets, and loyal companionship. He’s looking for a home where he can finally rest his head, stretch out those long legs, and maybe show off a little for the people he loves. Seniors like Goliath don’t ask for much. Just some patience, understanding, and the kind of unconditional love they’re so ready to give in return. A cozy bed, a soft voice, and a family who sees the beauty in his slow tail wags and soulful eyes — that’s all this big guy is hoping for. If you’ve got room in your heart and home for a mellow best friend who still has so much love to share, Goliath will be waiting with a grateful heart and a wagging tail. He’s not just looking for a place to stay — he’s looking for a place to belong. 🖤 Goliath is Heartworm +! If you have any questions about what that looks like, please reach out and our staff is happy to answer any questions.

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Mastiff puppies and dogs in Illinois

Jump to:

Adopt a Mastiff near you in Illinois

Below are our newest added Mastiffs available for adoption in Illinois. To see more adoptable Mastiffs in Illinois, use the search tool below to enter specific criteria!

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in Illinois cities

Mastiff shelters & rescues in Illinois

Looking for a specific shelter or rescue?

Want to learn more about adopting a Mastiff puppy or dog ?

Mastiff information

Mastiff basics

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Illinois

Mastiff puppies and dogs in Illinois

Jump to:

Adopt a Mastiff near you in Illinois

Below are our newest added Mastiffs available for adoption in Illinois. To see more adoptable Mastiffs in Illinois, use the search tool below to enter specific criteria!

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in Illinois cities

Mastiff shelters & rescues in Illinois

Looking for a specific shelter or rescue?

Want to learn more about adopting a Mastiff puppy or dog ?

Mastiff information

Mastiff basics