Surname A T Kumararajah (A T Kumararajah 
) , throughout the world, is an extremely rare cognomen. The family name A T Kumararajah is characteristic of South-eastern Asia, particularly Malaysia, where it is an extremely rare surname. More frequently, A T Kumararajah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| A T Kumararajah | Malaysia |