Cognomen Marudhappan (Marudhappan 
) , globally, is a very rare family name. The cognomen Marudhappan is characteristic of Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Marudhappan | Malaysia, India |
Raja, Rumya, Sambandam, Vaithiswaran, and Subramanian