Throughout the world, 亚凯 (亚凯 
, Yakai 
) is quite a rare dominantly masculine, but uncommonly feminine first name. The first name 亚凯 is characteristic of China, where it is a rare dominantly boy's, but infrequently girly name, India, where it is a very rare mostly feminine, but seldom masculine name, and Nigeria, where it is an extremely rare gender-neutral name. Very seldom, 亚凯 is the last name as well as the forename.