Cognomen Rathakrishanan (Rathakrishanan 
) , around the globe, is a very rare last name. The surname Rathakrishanan is characteristic of South-eastern Asia, particularly Malaysia, where it is a very rare surname. Also, Rathakrishanan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rathakrishanan | India, Malaysia |