"The Dark Tower" is a series of eight books and one short story written by American author Stephen King. Incorporating themes from multiple genres, including dark fantasy, science fantasy, horror, and Western, it describes a "gunslinger" and his quest toward a tower, the nature of which is both physical and metaphorical.

In addition to the eight novels of the series proper that comprise 4,250 pages, many of King's other books relate to the story, introducing concepts and characters that come into play as the series progresses.