There are many fors that play a role when assigning a “danger” level to a dog but most critics and researchers disagree as to what these fors are. Consequently, its unfair to callously label a dog as dangerous. Nevertheless, it cant be helped that some dog breeds have more potential to cause serious harm to a person if the dog were to decide to attack. Therefore, our 25 most dangerous dog breeds focuses on the potential of a dog to cause serious injury to a victim.