Family name Eruthayanathan (Eruthayanathan 
) , globally, is a very rare last name. The surname Eruthayanathan is characteristic of Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. More frequently, Eruthayanathan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Eruthayanathan | India, Malaysia |