Family name สุพจน์งามกุล (สุพจน์งามกุล 
) , all over the world, is a very rare cognomen. The surname สุพจน์งามกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| สุพจน์งามกุล | Thailand |