Shōgun is a 1975 historical novel by author James Clavell that chronicles the end of Japan's Azuchi-Momoyama period (1568–1600) and the dawn of the Edo period (1603–1868). Loosely based on actual events and figures, Shōgun narrates how European interests and internal conflicts within Japan brought about the Shogunate restoration.

By 1980 six million copies of Shōgun had been sold worldwide. The novel has been adapted into two TV series (in 1980 and 2024), a stage production (Shōgun: The Musical), a board game, and three video games. Though its historical setting is the earliest, it is the third of six published books in Clavell's broader Asian Saga series.

After Englishman John Blackthorne is lost at sea, he awakens in a place few Europeans know of and even fewer have seen--Nippon. Thrust into the closed society that is seventeenth-century Japan, a land where the line between life and death is razor-thin, Blackthorne must negotiate not only a foreign people, with unknown customs and language, but also his own definitions of morality, truth, and freedom. As internal political strife and a clash of cultures lead to seemingly inevitable conflict, Blackthorne's loyalty and strength of character are tested by both passion and loss, and he is torn between two worlds that will each be forever changed.

Powerful and engrossing, capturing both the rich pageantry and stark realities of life in feudal Japan, Shōgun is a critically acclaimed powerhouse of a book. Heart-stopping, edge-of-your-seat action melds seamlessly with intricate historical detail and raw human emotion. Endlessly compelling, this sweeping saga captivated the world to become not only one of the best-selling novels of all time but also one of the highest-rated television miniseries, as well as inspiring a nationwide surge of interest in the culture of Japan. Shakespearean in both scope and depth, Shōgun is, as the New York Times put it, "...not only something you read--you live it." Provocative, absorbing, and endlessly fascinating, there is only one: Shōgun.