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