Cognomen Ratnakaran (Ratnakaran 
) , all over the world, is a rare surname. The surname Ratnakaran is characteristic of United Arab Emirates, where it is a rare surname, Australia, where it is a very rare surname, and India. Also, Ratnakaran is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ratnakaran | Malaysia, India, Australia, United Arab Emirates, United States |
| neena ratnakaran researcher |
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| k. ratnakaran Indian chess player (b. 1981) |
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| neha ratnakaran Indian actress and model, IN (b. 1997) |
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