The Hidden Blade is a 2004 film set in 1860s Japan, directed by Yoji Yamada. The plot revolves around several samurai during a time of change in the ruling and class structures of Japan. The film was written by Yamada with Yoshitaka Asama and, like its predecessor The Twilight Samurai (2002), based on a short story by Shūhei Fujisawa. The soundtrack is an original composition by Isao Tomita.

Yoji Yamada is a Japanese film director best known for his Otoko wa Tsurai yo series of films and his Samurai Trilogy.