Cognomen Giềng (Giềng 
) , in the entire world, is a very rare last name. The family name Giềng is habitual in South-eastern Asia, particularly Vietnam, where it is a very rare surname. Much less frequently, Giềng is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Giềng | Vietnam |
Gieng, and Thánh Gióng