Last name Kulkan (กุลกาญจน์ 
, Кулкан 
, Кулькан ) , around the world, is a very rare cognomen. The surname Kulkan is characteristic of Kyrgyzstan, where it is a rare surname, Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. More frequently, Kulkan is the forename as well as the last name.