18. Rottweilers
One of the world’s most deadly dog breeds is the Rottweiler. They possess powerful innate instincts for protecting and herding. It’s a strong dog that has the potential to rank among the most deadly if left alone.
17. American Bandogge
This robust canine is a mix between a Neapolitan Mastiff and an American Pit Bull Terrier. It looks strong, which makes it an excellent fighting dog.