Family name Mahnarao (Mahnarao 
) , around the world, is a very rare surname. The cognomen Mahnarao is characteristic of Southern Asia, particularly India, where it is an extremely rare surname. Much more frequently, Mahnarao is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mahnarao | India |
Mannam, Shanaga, Vinukonda, Palaparthi, and Tallapaneni