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Goose
Meet Goose! A spirited one-and-a-half-year-old Mastiff/Shepherd mix currently in Phelan, CA, whose essence is a sunny burst of affection wrapped in a …
Joyful Pets • Phelan, CA
Mastiff Dogs for Adoption
266 adoptable dogs from shelters and rescues across the US. Showing 1–30 of 266 below.
About adopting a Mastiff
"Mastiff" on a shelter listing is a broad label. It can mean an English Mastiff, a Bullmastiff, a Neapolitan, a Cane Corso, or simply a very large dog with a heavy head and loose lips whose background nobody knows. Shelter staff assign it based on what a dog looks like at intake, so the word describes a body type more than a pedigree.
What the label tends to predict is size and a calm, watchful manner. Many mastiff-type dogs are quiet in the house, slow to react, and deeply attached to their people. Puppies under this label grow fast and stay clumsy for a long stretch, so early training pays off. Adults are often already past the wild stage and settle into a routine quickly.
What the label cannot tell you is how a particular dog feels about strangers, other dogs, or being left alone. Guarding instincts run through several of the breeds grouped here and show up differently in each individual. Drool, snoring, and a big food bill come with most of them. Hip and joint concerns, bloat, and heat sensitivity are things to ask the shelter and your veterinarian about. Ask the shelter or rescue what this dog has lived through and what training he has had so far, because that matters more than the word on the card.
266 Mastiff dogs available — page 1 of 9
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Big Boss
Fi fie fo fum, here comes Big Boss! He may be named Big Boss, but he's actually quite the softie. One of his favorite things to do is show off his plu…
Montgomery County Animal Services and Adoption Center • Derwood, MD
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Bentley
Harbor Animal Care and Control Center • San Pedro, CA
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Greenie
San Antonio Animal Care Services • San Antonio, TX
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Wario
This enormous guy is Wario! He may be huge, but he is the epitome of a gentle giant. He is sweet, easy going and loves fetch. Any kids in the home sho…
Denver Animal Shelter • Denver, CO
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Fred
Los Angeles County Animal Control - Lancaster • Lancaster, CA
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Daphne
Los Angeles County Animal Control - Lancaster • Lancaster, CA
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Daisy
West Valley Animal Care and Control Center • Chatsworth, CA
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Dalila
South Los Angeles Animal Care and Control Center • Los Angeles, CA
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Beefcake
City of Houston, Bureau of Animal Regulation and Care • Houston, TX
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Dug
Kern Co Animal Control Dept - Bakersfield • Bakersfield, CA
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Dougie
Riverside County Animal Control - Riverside Shelter • Riverside, CA
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Rainier
Pearland Animal Control and Adoption Center • Pearland, TX
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Louise
It's The Pits is still getting to know me! Check back soon for more information about my personality :) If interested in adopting a puppy, you must be…
It's The Pits • San Diego, CA
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Thelma
It's The Pits is still getting to know me! Check back soon for more information about my personality :) If interested in adopting a puppy, you must be…
It's The Pits • San Diego, CA
At Risk
Maximus - REDUCED ADOPTION DONATION
MEET MAXIMUS — CAN YOU SAY HUGE HUNK OF LOVE?! That pretty much describes Maximus perfectly! Maximus is approximately 3½–4 years old and one seriously…
Canine Rescue Coalition • Goodyear, AZ
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A171421
Bakersfield Animal Care Center • Bakersfield, CA
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August
August is a 3-year-old Mastiff mix with a giant head, an even bigger heart, and the kind of forehead wrinkles that make you wonder if he's contemplati…
Yolo County Animal Services Shelter • Woodland, CA
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Della
Los Angeles County Animal Control - Lancaster • Lancaster, CA
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Stir-Fry
The Animal Foundation - Las Vegas • Las Vegas, NV
Mastiff dogs by state
Other breeds
Adopting a Mastiff — FAQ
Is a Mastiff a good family dog?
Many mastiff-type dogs are gentle and patient with their own family, and their calm nature suits a quiet home. Their size means a wagging tail or a friendly lean can knock over a toddler, so supervision matters. Early socialization and clear house rules help a young dog grow into a steady adult.
How much exercise does a Mastiff need?
Less than most people expect. A couple of steady walks and some time to sniff around a yard satisfy most adults. Puppies should not be run hard or taken on long hikes while their joints are still developing. Mental work, like short training sessions, tires them out just as well.
Why do so many Mastiffs end up in shelters?
Size is the most common reason. A dog that seemed manageable as a puppy becomes expensive to feed, hard to house in a rental, and difficult to move. Some families also underestimate the drool and shedding. Very few are surrendered for aggression, and many arrive already house trained and mellow.
How do I adopt a Mastiff?
Open any dog's profile to see the shelter or rescue caring for them, then use the adoption link or contact details to apply directly with that organization. Every Dog's Chance simply gathers listings in one place so they're easier to find.
Are Mastiff dogs a good fit for first-time adopters?
Many Mastiff dogs — especially adult dogs who are already house-trained — can be a great match for first-time owners. Each dog's profile and the shelter or rescue caring for them can tell you about that dog's individual energy level, training, and personality before you apply.
How much does it cost to adopt a Mastiff?
Adoption fees vary by shelter and rescue, but typically include spay/neuter, vaccinations, and a health check. Open any dog's profile and contact the organization directly for their current fee and what it covers.
Are Mastiff dogs good with children or other pets?
It depends on the individual dog more than the breed alone. The shelter or rescue caring for each dog can tell you about their history with kids, cats, and other dogs. Many organizations offer meet-and-greets to make sure the match is right for everyone before you commit.
Can I foster a Mastiff instead of adopting?
Many shelters and rescues offer a foster program, sometimes with a foster-to-adopt path. Fostering a Mastiff gets them out of a kennel and into a calm home, which is a great way to see if the match feels right before committing. Ask the organization on any dog's profile whether fostering is an option.
What should I expect in the first weeks after adopting a Mastiff?
Most dogs have a brief adjustment period — a few days to a couple of weeks — as they settle into a new home. A consistent routine, a comfortable place to rest, and patience make the transition easier for both of you. The shelter or rescue can tell you what to expect from the specific dog you're adopting.
