Satoru Kobayashi (小林悟, Kobayashi Satoru?) was a Japanese film director most famous for directing the first pink film, the type of softcore pornographic films that became the most prolific film genre in Japan during the 1960s and 1970s. Japanese sources claim that Kobayashi directed over 400 pink films between 1960 and 1990, making him possibly the most prolific Japanese film director.