Jidaigeki (時代劇^?) is a genre of film, television, and theatre in Japan. The name means "period drama" and is usually the Edo period of Japanese history, from 1603 to 1868. Some, however, are set much earlier—Portrait of Hell, for example, is set during the late Heian period—and the early Meiji era is also a popular setting. Jidaigeki show the lives of the samurai, farmers, craftsmen, and merchants of their time. Jidaigeki films are sometimes referred to as chambara movies, a word meaning "sword fight", though chambara is really a subgroup. They have a set of dramatic conventions including the use of makeup, language, catchphrases, and plotlines.

Many jidaigeki take place in Edo, the military capital. Others show the adventures of people wandering from place to place. The long-running television series Zenigata Heiji and Abarenbō Shōgun typify the Edo jidaigeki. Mito Kōmon, the fictitious story of the travels of the historical daimyo Tokugawa Mitsukuni, and the Zatoichi movies and television series, exemplify the traveling style.