Worldwide, Ranganadhan (Ranganadhan 
) is a rare male given name. The forename Ranganadhan is habitual in Southern Asia, particularly India, where it is a very rare male name. Very seldom, Ranganadhan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ranganadhan | India, Canada, United States, Malaysia |
Kasam, Gomatam, Nadadhur, Pullamoor, Raghavan, Vijayaraju, and Chakravarthy