Cognomen Sivatharshan (Sivatharshan 
) , in the entire world, is a rare surname. The cognomen Sivatharshan is habitual in Sri Lanka, where it is quite a rare surname, Norway, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Likewise, Sivatharshan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sivatharshan | Norway, France, United States, United Kingdom, Sri Lanka |