Family name Ramoorthy (Ramoorthy 
) , in the world, is a very rare cognomen. The surname Ramoorthy is habitual in Malaysia, where it is a very rare surname, South Africa, and India, where it is an extremely rare surname. More prevalently, Ramoorthy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ramoorthy | United States, Malaysia, India, South Africa |