was a town located in Akumi District, Yamagata Prefecture in Japan. In 2003, the town had an estimated population of 5,426 and a population density of . The total area was . On November 1, 2005, Matsuyama, along with the towns of Hirata and Yawata (all from Akumi District), was merged into the expanded city of Sakata. External links Sakata official website Dissolved municipalities of Yamagata Prefecture Sakata, Yamagata