Family name Viswanadhan (Viswanadhan 
) , throughout the world, is a rare surname. The family name Viswanadhan is habitual in Western Asia, particularly Bahrain, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Oman. Not in comparison with a country's population, the name is most common in India, United Arab Emirates, and Saudi Arabia. Likewise, Viswanadhan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Viswanadhan | Saudi Arabia, Oman, Bahrain, India, United Arab Emirates |