Family name Kuppal (Kuppal 
) , throughout the world, is a rare surname. The cognomen Kuppal is habitual in Malaysia, where it is a very rare surname, and India. More frequently, Kuppal is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kuppal | India, United States, Malaysia, Australia |
Nadarajan, Vadivellu, and Palaniappan