Sister Street Fighter is a 1974 martial arts film directed by Kazuhiko Yamaguchi. Produced and distributed by Toei Company, it is a spin-off of The Street Fighter (1974), and is the first entry in a trilogy of films starring Etsuko Shihomi as Kōryū Li. It was followed by Sister Street Fighter: Hanging by a Thread (1974) and The Return of the Sister Street Fighter (1975).