Kōnan is a city located in Kōchi Prefecture, Japan. It lies in the Kōchi region on the island of Shikoku.
As of 30 June 2022, the city had an estimated population of 33,076, distributed across 15,350 households, with a population density of 49 persons per square kilometre. The total area of the city is 126.46 square kilometres (48.83 square miles).