Surname Raja Mohan (Raja Mohan 
) , throughout the world, is a rare cognomen. The surname Raja Mohan is habitual in Malaysia, where it is a rare surname, Singapore, and India, where it is an extremely rare surname. Much less frequently, Raja Mohan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Raja Mohan | India, Singapore, Malaysia |