Thai Surnames

Thai names are used in the country of Thailand in southeastern Asia.
Bunnag บุนนาค Thai
From the name of Bunnag, an 18th-century general of Persian heritage.
Metharom มธารมณ์ Thai
Possibly refers to a place or institute of learning or where knowledge is provided.
Wattana วัฒนา Thai
From Thai วัฒน (wathan) meaning "culture".