Cognomen Nanthiyar (Nanthiyar 
) , all around the world, is an extremely rare family name. The last name Nanthiyar is habitual in Southern Asia, particularly India, where it is an extremely rare surname. More frequently, Nanthiyar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nanthiyar | India, Thailand |