Cognomen Ranganthan (Ranganthan 
) , in the entire world, is a very rare last name. The family name Ranganthan is characteristic of Singapore, where it is a very rare surname, Malaysia, and South Africa. Not in comparison with a country's population, this name is the most popular in India, South Africa, and Malaysia. Likewise, Ranganthan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ranganthan | Malaysia, India, United States, Oman, South Africa |
| romesh ranganthan |
|