Best Medium-Sized Guard Dog Breeds

Akita. Akitas are large, powerful dogs that are originally from Japan. 

Shar Pei. Shar Peis are known for their distinctive wrinkled appearance. They are also very loyal and protective dogs. However, they can be stubborn and difficult to train. 

Chow Chow. Chow Chows are another breed that is known for their independent and aloof personality.  

Boxer. Boxers are known for their friendly and playful personality. However, they can also be very protective of their families. They are also relatively easy to train. 

Staffordshire Bull Terrier. Staffordshire Bull Terriers are known for their muscular build and their stocky appearance. 

Australian Cattle Dog. Australian Cattle Dogs are known for their intelligence and their herding instincts. They are also very loyal and protective dogs. 

The 5 Best Japanese Dog Breeds