Family name Sivaharan (Sivaharan 
) , in all the world, is a rare cognomen. The surname Sivaharan is characteristic of Sri Lanka, where it is a rare surname, the United Kingdom, where it is a very rare surname, and Canada. Likewise, Sivaharan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sivaharan | United Kingdom, Italy, Sri Lanka, India, Canada |