Family name Rajappen (Rajappen 
) , in all the world, is a very rare last name. The last name Rajappen is characteristic of South Africa, where it is a very rare surname, Malaysia, and India, where it is an extremely rare surname. Also, Rajappen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rajappen | India, Malaysia, South Africa |