Cognomen Ruswan (Ruswan 
) , globally, is quite a rare family name. The surname Ruswan is characteristic of South-eastern Asia, particularly Indonesia, where it is a rare surname, and Malaysia, where it is a very rare surname. Likewise, Ruswan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruswan | Thailand, Indonesia, Malaysia, India |