Family name Phalasaen (Phalasaen 
) , globally, is a very rare last name. The cognomen Phalasaen is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phalasaen | Thailand |
Ananya, Aphitsara, Miss Ananya, and Nuengruethai