Frankenstein; or, The Modern Prometheus is an 1818 novel written by English author Mary Shelley. Frankenstein tells the story of Victor Frankenstein, a young scientist who creates a sapient creature in an unorthodox scientific experiment.

Though Frankenstein is infused with elements of the Gothic novel and the Romantic movement, Brian Aldiss has argued for regarding it as the first true science-fiction story. In contrast to previous stories with fantastical elements resembling those of later science fiction, Aldiss states, the central character "makes a deliberate decision" and "turns to modern experiments in the laboratory" to achieve fantastic results.The novel has had a considerable influence on literature and on popular culture; it has spawned a complete genre of horror stories, films, and plays.