Surname Panthawat (พันธวัฒน์ 
, Panthawat ) , in the entire world, is a very rare last name. The cognomen Panthawat is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Panthawat is the forename as well as the last name.
Simma, Chokthongthongthawee, Musikasarn, Techasamran, Pootharak, Khengkhan, Khumlamai, Khaengkhun, Ratnamhin, Khengkan, Khanhkan, Taweepornjirapark, Khangkan, Chimwong, Arwathanakultep, Nakvisut, Toonporn, Thaiging, Kamsadja, Sisawas, Homnan, Kumsajja, Kosol, Khanghkan, and Wangmutitakul