Last name เสิศฤทธิ์กนก (เสิศฤทธิ์กนก 
) , throughout the world, is an extremely rare surname. The cognomen เสิศฤทธิ์กนก is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| เสิศฤทธิ์กนก | Thailand |