1. Jeffrey Dahmer
I am sure most of you knew he would be at the top of the 11 American cannibal serial killers. Jeffrey Dahmer achieved fame and notoriety because he not only raped and murdered 17 men and boys during a period of 13 years, but he also consumed their remains. While he was diagnosed with several mental illnesses, he was declared sane after he was apprehended and was sentenced to 16 life imprisonments. His premature end came when a fellow inmate beat him to death, a fitting end in my opinion.