Chūnan (仲南町 Chūnan-chō?) was a town located in Nakatado District, Kagawa Prefecture, Japan.
As of 2003, the town had an estimated population of 4,681 and a density of 80.51 persons per km². The total area was 58.14 km².
On March 20, 2006, Chūnan, along with the town of Kotonami (also from Nakatado District), was merged into the expanded town of Mannō.