Cognomen Vannithamby (Vannithamby 
) , across the world, is a very rare family name. The family name Vannithamby is characteristic of Malaysia, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States. Much less frequently, Vannithamby is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vannithamby | Canada, United States, United Kingdom, Malaysia |