Zenzō Matsuyama was a Japanese screenwriter and film director. He was born in Kobe and grew up in Yokohama. After leaving school, he began training to become a doctor but dropped out of medical school to take up a career in films. In 1948 he became an assistant director at Shochiku studios. With the support of Keisuke Kinoshita, he also began writing film scripts. His first filmed script was Kojo no tsuki, based on the song "Kōjō no Tsuki", filmed in 1954.