Last name Sumaraj (Sumaraj 
) , all over the world, is a very rare cognomen. The last name Sumaraj is habitual in South Africa, where it is a very rare surname, Argentina, where it is an extremely rare surname, and India. More prevalently, Sumaraj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sumaraj | United Kingdom, South Africa, Argentina, India, Malaysia |