Last name ธงเพ็ง (ธงเพ็ง 
) , all around the world, is a very rare family name. The surname ธงเพ็ง is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, ธงเพ็ง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ธงเพ็ง | Thailand |