Worldwide, キヨコ (Kiyoko 
, キヨコ ) is quite a rare unisex forename. The first name キヨコ is habitual in Japan, where it is quite a rare primarily boy's, but very seldom female name, the United States, where it is a rare girly name, and Belgium. Measured by absolute frequency, the name is most common in Japan, the United States, and Indonesia. Very seldom, キヨコ is the last name as well as the forename.