Family name Rangkasiwit (Rangkasiwit 
) , in the entire world, is a very rare last name. The family name Rangkasiwit is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rangkasiwit | Thailand |
Netiwut, Surasak, and Prachayawit