Family name พลอยภูสินธุ์ (พลอยภูสินธุ์ 
) , around the globe, is an extremely rare cognomen. The family name พลอยภูสินธุ์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| พลอยภูสินธุ์ | Thailand |