Family name Thiruchelvan (Thiruchelvan 
) , all over the world, is a rare last name. The last name Thiruchelvan is habitual in Sri Lanka, where it is a rare surname, Malaysia, and Canada, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Sri Lanka, Malaysia, and India. Also, Thiruchelvan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thiruchelvan | Canada, Malaysia, India, Sri Lanka, Singapore |