Last name Ratanaprasitt (Ratanaprasitt 
) , around the globe, is an extremely rare family name. The cognomen Ratanaprasitt is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ratanaprasitt | Thailand |
Pirayaprach, Wiriyapak, and Kanjanajitt