Shinjuku Triad Society (新宿黒社会 チャイナ マフィア戦争, Shinjuku kuroshakai: Chaina mafia sensô) is a 1995 Japanese film directed by Takashi Miike. The film is one of the earliest examples of Miike's use of extreme violence and unusual characterization, two aspects he would become notorious for. The film is part of the Black Society trilogy and is followed by Rainy Dog and Ley Lines.