Family name Phlaichana (Phlaichana 
) , worldwide, is a very rare cognomen. The last name Phlaichana is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phlaichana | Thailand |
Sunijsa, Thanom, Sirikon, Watsana, and Phanuphong