Family name Prasarnrajkit (Prasarnrajkit 
) , worldwide, is a very rare cognomen. The family name Prasarnrajkit is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Prasarnrajkit | Thailand |
Piyanan, Puntapol, Pornpilai, Nannapatt, and Watcharapol