Surname Ponnaswamy (Ponnaswamy 
) , in the world, is a very rare cognomen. The cognomen Ponnaswamy is habitual in Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Ponnaswamy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ponnaswamy | India, Malaysia |