Last name Ngọc Lan (Ngọc Lan 
) , throughout the world, is a rare family name. The cognomen Ngọc Lan is characteristic of South-eastern Asia, particularly Vietnam, where it is a rare surname. Likewise, Ngọc Lan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ngọc Lan | Japan, Vietnam |