Family name Vanarajah (Vanarajah 
) , around the world, is a very rare last name. The cognomen Vanarajah is habitual in Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. Much less frequently, Vanarajah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vanarajah | India, Malaysia |