Last name กาสาวพัสตร์ (กาสาวพัสตร์ 
, Kassawat 
, Kasawaphak ) , in the world, is a rare surname. The cognomen กาสาวพัสตร์ is habitual in Syria, where it is a rare surname, Thailand, where it is a very rare surname, and Venezuela. Not in comparison with a country's population, the name is most common in Syria, Thailand, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Kasawaphak, Kasalakulcharas, กาสาวพัสตร์ | Thailand |
| Kassawat | Germany, Syria, United States, Thailand, Venezuela |
Kanasawadse, Kasaephak, Kasamesukaphut, Kasantanabodi, Kasaophanit, Kasaw, Kasawapat, Kasawaphat, Kasawatana, Kasawid, Kasivivat, Kasphasa, Kassawad, Kassawas, Kaswiset, Katsawikanan, and Kussalasaiyanont