Cognomen Olahleng (Olahleng 
) , worldwide, is a very rare family name. The cognomen Olahleng is characteristic of Sub-Saharan Africa, particularly South Africa, where it is a very rare surname. Much less frequently, Olahleng is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Olahleng | South Africa |