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Globally, Koken (Koken
, Кокен
, Koge
) is quite a common epicene first name. The first name Koken is habitual in Japan, where it is quite a rare gender-neutral name, Kazakhstan, and Azerbaijan, where it is quite a rare masculine name. In absolute terms, it most frequently occurs in Japan, Kazakhstan, and India. More prevalently, Koken is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Koken | Turkey, India, Japan, United States, Germany |
| Кокен | Kazakhstan, Kyrgyzstan, Azerbaijan, Russia |
| Koge | India, Japan, United States, Germany, Cameroon |
| Кокэн | Kazakhstan |