"Public enemy" is a term which describes individuals whose activities are seen as criminal and extremely damaging to society.

The terms enemy of the people and enemy of the nation are designations for the political opponents and for the social-class opponents of the power group within a larger social unit, who, thus identified, can be subjected to political repression. In political praxis, the term enemy of the people implies that political opposition to the ruling power group renders the people in opposition into enemies acting against the interests of the greater social unit, e.g. the political party, society, the nation, etc.