Cognomen Ramakrsnan (Ramakrsnan 
) , around the globe, is a rare last name. The cognomen Ramakrsnan is habitual in India, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. More frequently, Ramakrsnan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ramakrsnan | India, Malaysia |
Ares, Ramanathan, and Venkataraman