Worldwide, Хийун (Xijun 
, Hijun 
, Hiiun 
) is a rare predominantly boy's, but very infrequently girly forename. The forename Хийун is habitual in Taiwan, where it is a rare masculine name, China, where it is a very rare primarily male, but very seldom female name, and Nigeria, where it is a very rare mostly masculine, but uncommonly girly name. Very seldom, Хийун is the last name as well as the forename.