Family name Venkatarathanam (Venkatarathanam 
) , globally, is a very rare cognomen. The last name Venkatarathanam is characteristic of Southern Asia, particularly India, where it is an extremely rare surname. More prevalently, Venkatarathanam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Venkatarathanam | India |