was a town located in Sayō District, Hyōgo Prefecture, Japan.
As of 2003, the town had an estimated population of 4,432 and a population density of 88.89PD/km2. The total area was 49.86km2.
On October 1, 2005, Nankō, along with the towns of Kōzuki and Mikazuki (all from Sayō District), was merged into the expanded town of Sayō.[1]