Family name Sankarrajan (Sankarrajan 
) , across the world, is a very rare cognomen. The family name Sankarrajan is characteristic of India, where it is an extremely rare surname, and the United States. Much less frequently, Sankarrajan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sankarrajan | India, United States |