The baht (Thai: บาท, sign : ฿ ; code: THB) is the currency of Thailand.It is subdivided into 100 satang (สตางค์). The issuance of currency is the responsibility of the Bank of Thailand. According to SWIFT, as of October 2014, the Thai baht ranked as the tenth most frequently used world payment currency.he Thai baht, like the pound, originated from a traditional unit of mass. Its currency value was originally expressed as that of silver of corresponding weight (now defined as 15 grams), and was in use probably as early as the Sukhothai period in the form of bullet coins known in Thai as phot duang (Thai: พดด้วง).