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


English Mastiff / American Staffordshire Terrier Mixed Breed Dogs

Information and Pictures

View from the top looking down at the dog - A brindle Mastiff/American Staffordshire Terrier is wearing a red spike collar sleeping on a hardwood floor with all of its limbs spread out.

"Good day, my name is Angus from Western Australia. I am a 3-year-old Mastiff x Staffy. My owner adopted me from k9 rescue. I love my new home and family. Dad buys me lots of toys to play with. I get to sleep on the lounge at night."

Other Names
  • Amstiff Terrier

The Amstiff is not a purebred dog. It is a cross between the Mastiff and the American Staffordshire Terrier. 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 any of the breeds in the hybrid. 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.