Yasujirō Shimazu (島津 保次郎, Shimazu Yasujirō, 3 June 1897 – 18 September 1945) was a Japanese film director and screenwriter, and a pioneer of the shōshimin-eiga (common people drama) genre at the Shōchiku studios in pre-World War II Japan.

His father owned a long-established seaweed business named Kōshū-ya directly in front of the main Mitsukoshi department store in Nihonbashi.

[3] He gave his debut as director in 1921 at Shōchiku's recently established Kamata studio,[3] directing both comedy and melodrama films, often depicting the everyday life of the lower middle classes.

[1] Our Neighbor, Miss Yae (1934) and A Brother and His Younger Sister (1939) are regarded as his most exemplary and best films.

[2] Many famous directors, such as Heinosuke Gosho, Shirō Toyoda, Kōzaburō Yoshimura, and Keisuke Kinoshita, started their careers as his assistant.