Cognomen Vatsan (Vatsan 
) , in the entire world, is a rare surname. The surname Vatsan is habitual in Georgia, where it is a rare surname, India, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in India, the United States, and Georgia. Likewise, Vatsan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vatsan | Singapore, United States, India, Georgia, Malaysia |