An Enemy of the People is an 1882 play by Norwegian playwright Henrik Ibsen.

Ibsen wrote it in response to the public outcry against his previous play, Ghosts, which challenged the hypocrisy of 19th-century morality. According to Ellen Mortensen, the words "scandalous, degenerate," and "immoral" were hurled at both Ghosts and its author because it openly discussed adultery and syphilis. Therefore, An Enemy of the People tells the story of a man who dares to speak an unpalatable truth, and is punished for it.