Last name ทองสัน (ทองสัน 
, Thongson 
) , across the world, is a rare surname. The last name ทองสัน is characteristic of Thailand, where it is quite a rare surname, Nicaragua, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Very seldom, ทองสัน is the forename as well as the last name.