Seiichirō Yamaguchi
Japanese film director and screenwriter.
- Title: Seiichirō Yamaguchi
- Popularity: 0.958
- Known For: Directing
- Birthday: 1938-03-10
- Place of Birth: Shinagawa, Tokyo Prefecture, Japan
- Homepage:
- Also Known As: 山口清一郎, 山口 清一郎, Seiichiro Yamaguchi, Hachiro Guryu, 具流八郎