Mastiff Adoption in Arnold, MO: Mastiff Puppies for Sale in Arnold, MO

Adopt a Mastiff near you in Arnold, Missouri

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 Arnold, Missouri

These Mastiffs are available for adoption close to Arnold, Missouri.

Chili Mac

Mastiff

Male, Puppy

St Louis, MO

Size

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

Details

Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Meet Chili Mac! This 11-month-old Cane Corso is a big, lovable goofball with a heart as giant as his paws! Chili Mac is equal parts cuddle bug and class clown — he’ll make you laugh one minute and melt into your lap the next. He can be a little shy when meeting new people, but once he decides you’re cool, he’s all in! He’s great with dogs big and small (seriously — from 6 lbs to 120 lbs!), crate and potty trained, and already knows some basic commands. Due to Chili Mac's size and clumsiness, he would do best in a home with older children. He would also be best with someone who has breed/guardian experience given some mouthy behaviors which are normal for the breed. Chili Mac would love an active home with another dog friend or a human adventure buddy. Whether you’re hiking, road-tripping, or just lounging on the couch- as long as you don’t mind a little drool, he’s ready to be your ride-or-die! If interested, please complete the Adoption Application on our website at www.NeedyPaws.org and we will contact you. Adopters must live within an hour’s drive of St. Louis, MO. Our $295 adoption fee includes up-to-date vaccinations, heartworm testing and preventative, spay/neuter and microchip. We are a 100% foster-based rescue and all of our dogs live in approved foster homes. We are dedicated to finding the best Forever Homes, and will perform home visits and conduct veterinarian and reference checks for each potential adopter.Visit this organization's web site to see any additional information available about this pet.November 12, 2025, 2:35 pm

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Birdie

Mastiff

Female, 1 yr 8 mos

Columbia, IL

Size

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

Details

Good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

This playful girl is the perfect mix of affection and independence! Birdie adores belly rubs, cuddles, and of course, treats! She is very treat motivated which makes training fun and rewarding. She is housebroken and enjoys spending time with her people but she is also independent enough to relax on her own. Birdie knows how to sit and is learning other commands. She is currently working on her leash manners, and still has other basics to refine, but she learns fast and actually enjoys training. Birdie does have a prey drive, so a home without cats or small dogs is going to be the safest fit. And lets be honest â€” Boerboels are not your casual 'first dog' breed. They are powerful protection dogs by nature and you need to understand what comes with owning a dog like her. The good news? They are phenomenal family companions when they have structure and Birdie has been nothing but gentle and sweet with her entire foster family.If you are experienced with large working breeds and want a smart, loyal, fun dog to add to your family, Birdie is your girl. A local trainer, who is actually her foster parent, is offering free training lessons to whoever adopts her, because we all want to set her and her new family up for success from day one. Birdie is one year old and weighs 112 pounds.The adoption fee for adult dogs, seven months and older, is $250. All pets are microchipped, up to date on vaccines, and will be altered prior to adoption. If you are interested in meeting a dog, please stop by the shelter during open hours. Dogs may be in a foster home, therefore scheduling an appointment is recommended. If you have an existing dog at home, we recommend bringing it along to meet your possible new family member.helpingstrays.org

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WALTER

Mastiff

Male, 7 yrs 1 mo

St. Louis, MO

Size

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

Details

Spayed or Neutered,

Story

Walter is looking for a home where he can continue to thrive and share his infectious happiness. If you`re ready for a loyal and affectionate companion, Walter is eager to meet you!

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Bellatrix aka "Willow Eliza"

Mastiff

Female, 8 yrs 1 mo

St. Louis, MO

Size

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

Details

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.

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Gus

Mastiff Mixed Breed (Large)

Male, Adult

St. Louis, MO

Size

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

Details

Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Meet Gus! Gus is a charming 3-year-old mastiff mix with a heart as big as his paws. This gentle giant is friendly, outgoing, and absolutely loves people. He gets along wonderfully with other dogs and kids—just be prepared for a little “bull in a china shop” energy when he gets excited! Gus is house-trained, kennel-trained, and making great progress with his leash skills. He’s also an excellent car buddy, happy to settle in and enjoy the ride. If you’re looking for a lovable, goofy companion who brings joy wherever he goes, Gus might just be your perfect match! https://www.shelterluv.com/matchme/adopt/NAF/Dog

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Sage

Mastiff

Female, Adult

Saint Louis, MO

Size

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

Details

Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Hi! Sage is what I believe is an iltalian mastiff mix of some sort. Her exact breed is unknown. Her birthday is 2/24/23. She has never resided in a shelter. She was fostered for 2 months through the Stray Reacue, then adopted by me. I am looking to rehome her solely because she is a very social dog who thrives in a home with multiple humans/dogs. Given my sudden life change, I am no longer able to provide that for her. I have noticed her a bit less happy in a home with just myself and her. Please reach out with any additional questions/concerns!

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Mastiff puppies and dogs in Arnold, Missouri

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Adopt a Mastiff near you in Arnold, Missouri

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 Arnold, Missouri

These Mastiffs are available for adoption close to Arnold, Missouri.

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Arnold, Missouri

Mastiff shelters & rescues in Arnold, Missouri

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics