Surname Reghunathanpillai (Reghunathanpillai 
) , all over the world, is a very rare family name. The cognomen Reghunathanpillai is characteristic of Malaysia, where it is a rare surname, and India, where it is an extremely rare surname. Very seldom, Reghunathanpillai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Reghunathanpillai | India, Malaysia |