Thian Hee or Thianhee Sarasin (Thai: เทียนฮี้ สารสิน; RTGS: Thianhi Sarasin) was also known by his noble title Phraya Sarasinsawamiphak. Thian Hee (Chinese: 黄天喜) (1848–1925) was born in Thailand to a Thai mother and Chinese father. He came from a line of wealthy rice traders and pharmacists who had immigrated from Hainan Province, China to reside in the largely mercantile Thonburi across the river from Bangkok. At a young age he was taken to the US by a missionary to pursue his studies. He is noted as being the first Thai to have studied in the US. He finished his studies in medicine at Columbia University in 1871. He returned to Thailand as the country's first ever medical doctor.