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