Family name Thatsawan (ทัศวรรณ 
, ทัศน์วรรณ , ทัศวรรณ์ ) , around the world, is a very rare surname. The last name Thatsawan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more frequently, Thatsawan is the forename as well as the last name.
Suya, Wongkom, Saesoeng, Seetabut, Srithong, Sritabut, Chomthip, Khongsri, Pankhlai, Thongnet, Mahasanit, Muangklom, Seetaboot, Sornsomnuek, Chiangprom, Cherdchit, Klomkliao, Duangwirot, Wachachit, Chanprakob, Chanmontri, Thanomchit, Wongselertsiri, Homlaaed, Jaiboon, Rooboon, Sukto, Sokul, Aunsri, Butsi, Jaban, Mokklai, Samana, Sindip, Siowio, Sodtha, Wongprompiriya, Schink, Dampaen, Onphomrat, Waylee, Saokaew, Ausachit, Kaeomun, Kunlaya, Panpeng, Phetrat, Phromma, Butsri, and Wanitchayanusak