Surname Samathanam (Samathanam 
) , worldwide, is a very rare cognomen. The surname Samathanam is habitual in Malaysia, where it is a very rare surname, India, where it is an extremely rare surname, and the United States. Also, Samathanam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Samathanam | United States, Malaysia, India, South Africa |