Nakayama (中山町 Nakayama-chō) was a town located in Iyo District, Ehime, Japan.
On April 1, 2005 Nakayama, along with the town of Futami, also from Iyo District, was merged into the expanded city of Iyo.
As of 2003, the town had an estimated population of 4,256 and a density of 56.43 persons per km². The total area was 75.42 km².