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.[1] [2]