Family name Karuppu (Karuppu 
) , in the world, is a rare cognomen. The surname Karuppu is characteristic of Western Asia, particularly Qatar, where it is quite a rare surname, United Arab Emirates, and Oman, where it is a rare surname. Not in comparison with a country's population, it is commonest in United Arab Emirates, Saudi Arabia, and India. More frequently, Karuppu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Karuppu | United Arab Emirates, Oman, Saudi Arabia, India, Qatar |