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Mastiff puppies and dogs in Troy, Missouri

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

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These Mastiffs are available for adoption close to Troy, Missouri.
Photo of Siggy

Siggy

Mastiff Great Pyrenees

Female, Adult
St. Louis, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Siggy – Your Loyal, Loving GuardianSiggy is a gorgeous 2-year-old brindle Great Pyrenees mix weighing 82 pounds. She is incredibly sweet, especially with children of all ages (incl. rambunctious toddlers) and gets along well with other dogs in the home. True to her breed mix, Siggy is both intelligent and protective—once you’re part of her pack, she will be fiercely devoted and always have your back.As a Pyrenees, and what we believe to be a Catahoula mix, she has strong guardian instincts. She is deeply bonded to her family “pack”, and is naturally protective. She isn’t aggressive but is true to her instincts as a protector. She’s also very submissive/eager to please—she learns quickly and never needs harsh discipline to understand what’s expected of her.Siggy does have some separation anxiety, but she does fine when she has another dog around for company while her humans are away.While Siggy is incredibly affectionate with her family, she isn’t a fan of crowded public places or strangers approaching her and her “pack”. However, if given the chance to approach others on her own terms, she is gentle and sweet. She would do best in a home that understands and respects her protective nature- one that provides the proper introduction to guests, and provides enough yard space to be a mostly stay-at-home dog, where she can love on, sunbathe, and protect, her family.Commands she knows:-sit-shake-leave it-drop itIf you’re looking for a fiercely loyal, intelligent, and loving companion who will always be by your side, Siggy is the perfect match.IMPORTANT: Please read all below, especially if you live outside of Texas, which is where our rescue is located.Apply to adopt on our website: https://www.charmingpetrescue.org/adoptAll of our animals are spayed/neutered, microchipped, and up to date on shots.ALL of our animals are located in Boerne, TX, but transport after adoption is available to other states for a $300 fee for dogs or an additional fee varying by location for cats. If you are seeing our pets posted in your state, that's because you live near a transport stop, they are not currently at that location. Petfinder lists our pets as 'Out of Town' pets at other locations, and Adopt-a-Pet lists our location as a Transport stop. Those are currently the only options they offer to make this clear, so we put this description we've put at the bottom to explain it. You can read more about transport here: www.charmingpetrescue.org/transportWe understand transport is not an option for everyone, but we offer it at the cost we pay the transport company for those who wish to adopt from us.May 5, 2025, 11:29 am
Photo of Finn JuM AKA Gage DD*

Finn JuM AKA Gage DD*

Mastiff Shepherd (Unknown Type)

Male, 6 yrs 2 mos
St Louis, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Good with dogs, Not good with cats, Spayed or Neutered,
Story
Meet Finn the Rockstar! Finn is a silly and great boy and looks like a rockstar with his appearance (being a mix of Blackmouth Cur and Shepherd breeds). Finn has grown into a big boy, weighing in at a whopping 60 pounds, he's a nice medium sized dog with a huge personality. He has a beautiful gray and tan coat and gentle, kind eyes. Overall, Finn is a great dog. He gets along with everyone, with proper introductions, and loves his people deeply. He's always good with dogs, having siblings is always a great social starter for most dogs. Based on Finn's interactions with everyone he would really do well with slow and proper introductions with anyone he meets. He might be a rockstar but he just rolls like that. Finn is laidback lovebug, kinda eyore-like, easygoing and slow. From the moment Finn wakes up he is ready and engines roarin' to show anyone how much love he has, it's A LOT OF LOVE!He is also VERY affectionate, anytime someone goes to great Finn he just loves to run up to them and give them a slobbering of kisses and a big hug. He's always so happy to see people and genuinely shows it! Local adoption fee is $200 (in TX)
Photo of Bellatrix aka "Willow Eliza"

Bellatrix aka "Willow Eliza"

Mastiff

Female, 7 yrs 7 mos
St. Louis, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Not good with dogs, Not good with cats, Spayed or Neutered,
Story
Bella is big and beautiful with a personality to match. This six-year-old mastiff mix girl adores people, snuggles, pets, and attention. She is spayed and up-to-date on all her medical care and is heartworm-negative. Bella is a big girl, approximately 65 pounds, so while she is very good with people, she would be best with older kids who can keep up with her size. She is house-trained, and a fenced yard would be best since Bella is a large dog and likes to play. Bella likes her people so much she doesn't want to share and would do best as the only dog in her home. To meet Bella, visit istodaymydayrescue.org to fill out an application. Her adoption fee is $100.
Photo of Mikey Boy

Mikey Boy

Mastiff American Staffordshire Terrier

Male, 2 yrs 5 mos
St. Louis, MO
Size
(when grown) -
Details
Not good with kids, Not good with dogs, Good with cats, Spayed or Neutered,
Story
-
Photo of Sandra

Sandra

Mastiff American Pit Bull Terrier

Female, 1 yr 1 mo
St. Louis, MO
Size
(when grown) -
Details
Not good with kids, Not good with dogs, Not good with cats, Spayed or Neutered,
Story
-

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Mastiff shelters & rescues in Troy, Missouri

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

Here are a few organizations closest to you:

Rescue

28.7 miles

Charming Pet Rescue - MO Transport Stop

St. Louis, MO 63303

Pet Types: dogs

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Rescue

34.5 miles

Gods Dogs Rescue of TX for St Louis Transport Stop

St Louis, MO 63146

Pet Types: dogs

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Rescue

45.1 miles

Is Today My Day Rescue

St. Louis, MO 63139

Pet Types: dogs

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Shelter

47.7 miles

CARE STL

2700 Walnut Place, St. Louis, MO 63103

Pet Types: cats, birds, dogs, farm animals, 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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