Cognomen Suntharan (Suntharan 
) , in all the world, is a very rare last name. The family name Suntharan is characteristic of Malaysia, where it is a very rare surname, Canada, where it is an extremely rare surname, and India. More frequently, Suntharan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suntharan | Canada, Malaysia, India, South Africa |
Raja, Pillay, Muniandy, and Parameshuwaran