Cognomen สิชฌนุกฤษณ์ (สิชฌนุกฤษณ์ 
) , in all the world, is an extremely rare surname. The last name สิชฌนุกฤษณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| สิชฌนุกฤษณ์ | Thailand |