Kotonami (琴南町 Kotonami-chō) was a town located in Nakatado District, Kagawa, Japan.
As of 2003, the town had an estimated population of 3,056 and a density of 36.91 persons per km². The total area was 82.79 km².
On March 20, 2006 Kotonami was merged with the towns of Mannō (old) and Chūnan, both from Nakatado District, to form the new town of Mannō.