Surname Rachaapai (Rachaapai 
) , in the entire world, is a rare family name. The surname Rachaapai is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rachaapai | Thailand |
Sathika, Pawatpong, Thitiyapa, and Pongprayoon