In the world, Коё (Koyo 
, Коё) is quite a common predominantly female, but scarcely male first name. The first name Коё is characteristic of Japan, where it is quite a rare feminine name, Morocco, where it is a rare male name, and Tanzania. Measured by absolute frequency, this name is the most popular in Japan, India, and Indonesia. Likewise, Коё is the last name as well as the forename.