The 15 dog breeds with really bad reputations are Pit Bull Terrier, Rottweiler, Doberman Pinscher, German Shepherd, Chow Chow, Akita, Dalmatian, Presa Canario, Boxer, Siberian Husky, Alaskan Malamute, Bullmastiff, Great Dane, Shar Pei, and Wolf Hybrid.