Family name Ramachanran (Ramachanran 
) , in the entire world, is a rare last name. The cognomen Ramachanran is habitual in Malaysia, where it is a rare surname, Singapore, and India, where it is an extremely rare surname. Likewise, Ramachanran is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ramachanran | India, Malaysia, Singapore |