Family name สุกุลรัตน์โกศล (สุกุลรัตน์โกศล 
) , in the entire world, is an extremely rare surname. The family name สุกุลรัตน์โกศล is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| สุกุลรัตน์โกศล | Thailand |