The words Dog Breed Info with the letter D inside of a black paw print

Mastiff Shepherd

German Shepherd / English Mastiff Mixed Breed Dogs

Information and Pictures

A large breed tan with black dog with large perk ears, a long muzzle, pointy nose, light brown eyes and large paws laying down ona tan carpet looking at a baby.

Harley the English Mastiff and German Shepherd mix at 2 1/2 years old—"Harley's mom was a purebred German Shepherd, weighing approximately 75 lbs. His father was a purebred Mastiff, weighing approximately 180 lbs. He is now 2.5 years old, weighing approximately 150 lbs and still growing! He stands 6 ft. tall on his hind legs. He is a wonderful dog. He has an amazing temperament. He's very laid back and so gentle with our small children. He lays on his side patiently if the baby approaches him with his favorite toy... even though he would love to play. He dismisses the toy completely and licks fingers and toes and loves to be the jungle gym. Otherwise, he likes to lay near the children during group play and just be near them. If they are playing outside, he patrols the perimeter of the yard and redirects children who get too close to the perimeter by walking in front of them until they forget where they are going and turn around LOL. He loves to lounge around, but when he gets outside he loves tug of war, playing with tennis balls and big tree branches! But his favorite toy is the laser pointer. He is very intelligent. When I was pregnant he would always lick my belly. Any time I am sick in the bathroom, he comes and lays his head on my lap until I am done, and then he licks my tears away :) same for the kids. He is such a sweet boy. On top of all of this, he is so alert to his surroundings. And if an "intruder" shows up to the house while I am away, he makes it clear they aren't welcome. (We had our friend test this theory gladly and we were all pleased with the result!) He is our most beloved pet. He is active enough to play but not too demanding and destructive. He loves to snuggle but is also very independent, alert but does not bark incessantly, great natural protective instincts but not overzealous and knows when to protect and when to let the alphas be in charge. He is a definite gentle guardian over small children and even the cat and chickens. He has a pretty low prey drive also... he would do perimeter patrols around our free range chickens to keep them in our yard, and the closest thing to bothering them would be to occasionally trot through the flock to watch them scatter before rounding them all up in a group again LOL! Not to mention he just looks cool as hell :) I'm not worried about intruders."

Other Names
  • English Mastiff Shepherd
  • German Mastiff Shepherd
  • GSD Mastiff

The Mastiff Shepherd is not a purebred dog. It is a cross between the German Shepherd and the English Mastiff. The best way to determine the temperament of a mixed breed is to look up all breeds in the cross and know you can get any combination of any of the characteristics found in either breed. Not all of these designer hybrid dogs being bred are 50% purebred to 50% purebred. It is very common for breeders to breed multi-generation crosses.

  • DRA = Dog Registry of America, Inc.
Front side view of an extra skinned, wide, tan dog with a wide square black muzzle and a big black nose with large perk ears and light brown eyes laying down on a person's bed.

Harley the English Mastiff and German Shepherd mix at 2 1/2 years old

A brown with black large breed puppy with big paws and small fold over ears, a black muzzle and black nose laying down sleeping on a brown oriental patterned couch.

Nala the English Mastiff / German Shepherd mix breed as a puppy at 8 weeks old—"Nala is a German Shepherd X English Mastiff cross. She's nine weeks old. She's a very lazy and sleepy puppy, who seems to have much more of the mastiff tempermant. We're not sure how big she's going to get, the vet thinks at least a hundred lbs. She's very lazy, sleeps even more than regular puppies. She's very vocal and will howl when not getting her way or just to express her contentment. She's currently 15 lbs. You can definitely see both breeds in her. She's 50% pure English mastiff and 50% pure german shepherd, both AKC registered. She's a complete cuddle bug, and never wants you out of her sight."

A large breed, brown dog with a black muzzle, black nose and dark tummy laying belly up on a tan oriental patterned couch. The pups ears fold down to the sides.

Nala the English Mastiff / German Shepherd mix breed as a puppy at 8 weeks old

Front view of a brown with black puppy with brown eyes and a black nose and ears that hang down to the sides laying down looking forward.

Nala the English Mastiff / German Shepherd mix breed as a puppy at 8 weeks old

The back end of a brown dog with a black tail and a darker back laying down with its front end under a wooden table on a dark brown hardwood floor.

Nala the English Mastiff / German Shepherd mix breed as a puppy at 8 weeks old

A Beagle hound looking tricolor dog laying down nose to nose with a smaller large breed brown puppy with a black muzzle outside in the grass.

Nala the English Mastiff / German Shepherd mix as a puppy at 8 weeks old with her hound dog friend