Cognomen Ponnousamy (Ponnousamy 
) , all around the world, is a very rare last name. The surname Ponnousamy is habitual in Sub-Saharan Africa, particularly Mauritius, where it is quite a rare surname. Much less frequently, Ponnousamy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ponnousamy | Mauritius, India |