Surname ทองดำ (Thongdam 
, ทองดำ, Black Gold 
) , in the world, is quite a rare cognomen. The last name ทองดำ is habitual in Laos, where it is quite a rare surname, Thailand, where it is a rare surname, and Nigeria, where it is an extremely rare surname. Likewise, ทองดำ is the forename as well as the last name.