Cognomen Noorjahaan (Noorjahaan 
) , in the entire world, is a very rare family name. The cognomen Noorjahaan is habitual in Southern Asia, particularly India, where it is an extremely rare surname. Predominantly, Noorjahaan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Noorjahaan | United States, South Africa, India |