Worldwide, Хаиюн (Haijun 
, Хаиюн 
, Khaiyun 
) is quite a rare epicene forename. The first name Хаиюн is habitual in Taiwan, where it is quite a rare boy's name, Singapore, where it is a rare male name, and China, where it is a very rare masculine name. Not in comparison with a country's population, it is commonest in China, India, and Taiwan. Much less frequently, Хаиюн is the last name as well as the forename.