Family name コヤ (コヤ ) , globally, is an extremely rare surname. Much more frequently, コヤ is the forename as well as the last name.
Koya
コトコ, ミサキ, トモコ, ユウコ, ヨウイチ, and ヒロアキ
) , globally, is an extremely rare surname. Much more frequently, コヤ is the forename as well as the last name.