Surname Sihawat (Sihawat 
, สีหาวัฒน์ 
) , in the entire world, is a rare last name. The cognomen Sihawat is habitual in Thailand, where it is a rare surname, and India, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sihawat | India |
| สีหาวัฒน์ | Thailand |