Surname Dorairajah (Dorairajah 
) , worldwide, is a very rare family name. The cognomen Dorairajah is habitual in Malaysia, where it is a rare surname, and India, where it is an extremely rare surname. Very seldom, Dorairajah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dorairajah | India, Malaysia |