Throughout the world, Heonan (Hence , Heonan ) is a rare primarily masculine, but very infrequently female first name. The first name Heonan is characteristic of the Democratic Republic of the Congo, where it is a rare boy's name, Indonesia, where it is a rare primarily boy's, but very seldom female name, and the United States, where it is a very rare boy's name. Likewise, Heonan is the last name as well as the forename.