The extreme violence against women, considered as a criminal act , has been bearly visible, but it is the source that generates the most detriment and prejudice to the rights of women. In terms of this universal view, the conduct of extreme violence against women is designated as «Femicide/Feminicide». Currently in Latin America, the proposal for its inclusion in the criminal law of each country as a crime, has been gaining impetus. Some Latin American states have already done this, but however have not obtained significant results, as they are not accompanied by public policy sanctions that sensitize society to prevent such acts. The objective of this article is to explore the adoption of state policies in America for the prevention of extreme violence against women. Firstly, its origin is traced , its evolution and its conceptualization of the term “femicide” thereafter the comission of femicide in America is described in specific terms; then proceeds to the considerations to bear in mind in a proposal to typify femicide, followed by a synthesis of the concept in American States that already apply criminal sanctions in this regard, and thereafter concluding with a description of the situation in Colombia with respect to protective measures and laws that set out the description of femicide and the statistics on violence perpetrated against women.