Surname Kotken (กฎเกณฑ์ 
, Kotken ) , in the entire world, is an extremely rare last name. The surname Kotken is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, Kotken is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kotken, กฎเกณฑ์ | Thailand |