Family name ธงเงิน (ธงเงิน 
) , globally, is a rare surname. The last name ธงเงิน is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, ธงเงิน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ธงเงิน | Thailand |