Surname Kumaranathan (Kumaranathan 
) , in all the world, is a very rare last name. The surname Kumaranathan is characteristic of Australia, where it is a very rare surname, Malaysia, and Canada, where it is an extremely rare surname. Also, Kumaranathan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kumaranathan | Australia, Canada, United Kingdom, India, Malaysia |