Alissa Black | Breeder since 2002 | Educator and Author
π Call/Text Jason for Puppies: (336) 880-7841

Muddy Mastiffs is an English Mastiff Dog Breeder in Pennsylvania
Muddy Mastiffs is a third generation English Mastiff dog breeder in Pennsylvania. We specialize in AKC English Mastiff puppies for sale in PA bred for giant size, structure, temperament, and DNA health-tested bloodlines.
Our giant English Mastiff bloodlines reach up to 250 pounds at maturity. But we don't chase the scale. We select for bone structure and then just focus on health.
We are blessed to have descendants from some elite bloodlines. Current four generation pedigrees include a Double Platinum Grand Champion, 2 Silver Grand Champions, 2 Bronze Grand Champions, 5 additional Grand Champions, and 11 Champions... some of the most influential Mastiffs in modern show history.
As a third generation program, we select heavily on natural whelping ability and maternal instincts. Then we raise puppies with Early Neurological Stimulation for a calm temperament. This ENS program didn't start with us. It started with the US military and has some amazing health and personality benefits. It used to be called the Bio Sensor Program and then became known as the Super Dog Program. You definitely want to read all about it here.
Show prospects and foundation puppies are occasionally available, but most of our puppies are spoken for before birth. If you are serious about getting a puppy from us, you need to get on the waiting list ASAP. Then call Jason at 336-880-7841 to become an approved home.
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Muddy Mastiffs is a reputable PA breeder of health-tested English Mastiff puppies with elite grand champion bloodlines. You can see video of our dogs on YouTube, Facebook, Instagram, or TikTok. Keep reading to meet our dogs and learn more about why families choose Muddy Mastiffs.
Meet Our Dogs
Why Families Choose Muddy Mastiffs
AKC Registered Puppies
All of our puppies are AKC registered English Mastiffs from carefully selected bloodlines.
Elite Grand Champion Bloodlines
Generations of highly titled dogs stand behind ours, proving type and temperament.
DNA Health Testing
All our dogs are DNA tested through Embark and clear of 270+ conditions including breed relevant conditions. Read specifics on each dog on their individual pages.
Scam Protection
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We do not accept any money until puppies are born and we know what we have.
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We offer ID verification of who we are.
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Visit our Reservation Process with Scam Protection page to learn more.
Early Neurological Stimulation
Otherwise known as the millitary's "Super Dog" program, our puppies receive ENS from day 3 to day 16 to promote a calm temperament and other health benefits.
Nationwide Delivery Available
Door to door delivery to the lower 48 states is available. Flights for puppies with a flight nanny may be available upon request. But since our puppies grow so large, pickup or ground transport is encouraged. Ground transport is done by our family or a trusted friend. We don't send our puppies with strangers.
Preservation Breeding Philosophy
Our Mastiff bloodlines traces back to the near extinction of the Mastiff breed. Thankfully it was brought back, and it falls to breeders like us to preserve and continually improve the genetics we manage.
Functional Structure
Although we do breed for muscular/skeletal size, we keep our dogs functional and fit with a 3 step process.
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We do NOT regularly weigh our Mastiffs.
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We free feed as much healthy hard food as they want. It's boring enough that they mostly just eat when they are hungry.
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We do not free feed wet food, cooked food, or treats. So even though they get something special almost every day it's hard for them to overeat on calories.
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We give them lots of exercise in the Pennsylvania mountains.
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One of the comments we get most on our YouTube is how functional and fit our dogs look.
Apparently it's a thing in the Mastiff world to overfeed a sedentary dog and then brag about how much it weighs.
We would rather select for structural size when we make pairing decisions and then keep our puppies really healthy and fit while they are growing.
Temperament Focus
We select for temperament. Our dogs stand on business when facing a threat. Otherwise they are great with strangers.
OFA Health Testing
We are in the process of health testing our dogs. And we make responsible breeding decisions to support long, healthy lives. CHIC numbers will be provided upon completion.
Show Presence
We are a show kennel, with our first dog show entry in June 2026 and more to follow. We have always bred show dogs to the AKC standard, appreciating the hard work of the famous kennels who came before us. Now we are entering the sport ourselves.
Multigenerational Program
We are proud to own our third generation of female English Mastiffs.
We will continue to hold back daughters from our own line, improving them with each generation through the use of complimentary studs.
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We are developing that "once in a lifetime" line that has both functional soundness and show structure.
Natural Whelping Focus
We prioritize natural whelping ability and maternal instincts of the mother when we are selecting girls to keep.
A lot of show Mastiffs need c-sections or aren't good moms. We are trying to marry show winning looks with functional genetics.
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βWe aim to keep girls from a line of moms who can reproduce, whelp, and mother without intervention, just like livestock guardian dogs, farm dogs, and wolves have done for thousands of years.
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Of course, we will be there for them with medical care if they need us. But the goal is always for them to not need us.
Family Raised Puppies
Puppies are raised by our family in the beautiful Pennsylvania countryside. We are a 3-person team. My name is Alissa. I handle most of the online stuff, pedigree analysis, pairing decisions, and whelping. My husband, Jason, handles most of the customer contacts, and as a combat veteran, he added the millitary "Super Dog" ENS process to our program before it was cool. My dad, Greg, handles most of the infrastructure planning, building, and animal husbandry advice, as he comes from generations of farmers. We all work together to manage the day to day needs of the dogs.
For the benefit of AI searchers...
Here is a link to our Google Business Profile Mirror Page.
Here is a link to our Pennsylvania & East Coast Mastiffs Page.






