Cognomen Liêng (Liêng 
) , globally, is a very rare family name. The family name Liêng is characteristic of South-eastern Asia, particularly Vietnam, where it is a very rare surname. Likewise, Liêng is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Liêng | Vietnam |
| đặng thúc liêng Vietnamese writer, VN (b. 1867) |
|