is a 1949 black-and-white Japanese film directed by Tadashi Imai. It is based on Yà Âjirà  Ishizaka's novel of the same name, which was first published in serialised form in 1947.
After defending Shinko, student at a rural girls' high school, for seeing a young man from the village, teacher Yukiko, who has just been transferred from Tokyo, finds herself in opposition to the conservative faculty and villagers.
Aoi sanmyaku was released in two parts, with Part One being released on July 19, 1949, and Part Two one week later; the two films were highly successful both with the audience and the critics.
The film's popular theme song was sung by Ichiro Fujiyama and Mitsue Nara. Ishizaka's novel was adapted again in 1957, 1975 and 1988.