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Mastiff puppies and dogs in Mount Vernon, Illinois

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

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Adopt a Mastiff near you Mastiff in cities near Mount Vernon, Illinois Other pups in Mount Vernon, Illinois Search for a Mastiff puppy or dog near you Browse Mastiff puppies and dogs in nearby cities Browse related breeds in Mount Vernon, Illinois Mastiff shelters and rescues in Mount Vernon, Illinois Learn more about adopting a Mastiff puppy or dog

Adopt a Mastiff near you in Mount Vernon, 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 Mount Vernon, Illinois

These Mastiffs are available for adoption close to Mount Vernon, Illinois.
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ATHENA

English Mastiff

Female, Adult
DuQuoin, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered,
Story
 .    Athena is everything a mastiff is supposed to be; Large, sweet, slow, and large. October 25, 2026, 7:42 am

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Grim

Mastiff

Male, Young
Greenville, IL
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with cats, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
❤️ Meet Grim❤️This is a really hard decision for us because Grim is genuinely such a GOOD boy. He is a fun-loving, goofy, affectionate big guy who thinks he’s a lot smaller than he actually is! He loves to play, have fun, and be around his people. Once he’s tuckered out, he turns into the sweetest cuddle bug who just wants love and affection. 🥹❤️Grim has lived in a home with two cats and has shown no aggression toward them or other dogs. He’s a playful, friendly boy who could do well in a home with other dogs, given the right introductions and environment. He has so much love to give and such a big, silly personality that makes him impossible not to love.Unfortunately, as much as we love him, our home and schedule just aren’t the right fit for Grim’s needs. He deserves someone who can prioritize him, give him the time and attention he needs, and help him thrive in an environment that works for his energy and persona.

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

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Mastiff puppies and dogs in nearby cities

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Related breeds in Mount Vernon, Illinois

Bullmastiffs in Mount Vernon, Illinois Neapolitan Mastiffs in Mount Vernon, Illinois Saint Bernards in Mount Vernon, Illinois

Mastiff shelters & rescues in Mount Vernon, Illinois

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

Here are a few organizations closest to you:

Shelter

27.9 miles

Perry County Humane Society

8365 State Route 14, DuQuoin, IL 62832

Pet Types: cats, 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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