Cognomen ทองนิ่ม (Thongnim 
, ทองนิ่ม) , in all the world, is a rare surname. The surname ทองนิ่ม is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, ทองนิ่ม is the forename as well as the last name.