Family name Subbaiahthevar (Subbaiahthevar 
) , throughout the world, is an extremely rare cognomen. The cognomen Subbaiahthevar is habitual in Southern Asia, particularly India, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Subbaiahthevar | India |
Ganesh, Barathiraja, and Ganesamoorthy