Red Beard is a 1965 Japanese jidaigeki film co-written, edited, and directed by Akira Kurosawa, in his last collaboration with actor Toshiro Mifune. Based on Shūgorō Yamamoto's 1959 short story collection, Akahige Shinryōtan, the film takes place in Koishikawa, a district of Edo, towards the end of the Tokugawa period, and is about the relationship between a town doctor and his new trainee. Fyodor Dostoevsky's novel Humiliated and Insulted provided the source for a subplot about a young girl, Otoyo, who is rescued from a brothel.

Akira Kurosawa was a Japanese filmmaker and painter who directed 30 films in a career spanning over five decades. He is widely regarded as one of the greatest and most influential filmmakers in the history of cinema. Kurosawa displayed a bold, dynamic style, strongly influenced by Western cinema yet distinct from it; he was involved with all aspects of film production.