Globally, Kokkan (Kokkan , Коккан ) is an extremely rare epicene first name. Very seldom, Kokkan is the last name as well as the forename.
กนกกาญจน์, กอกกัน, โคกขัน, and コクカン
Ono, Suzuki, Komori, Tanaka, and Shinohara
, Коккан 
) is an extremely rare epicene first name. Very seldom, Kokkan is the last name as well as the forename.