Cognomen Sinawan (Sinawan 
) , around the world, is a rare surname. The cognomen Sinawan is habitual in South-eastern Asia, particularly Indonesia, where it is a very rare surname, Malaysia, and Philippines, where it is an extremely rare surname. Likewise, Sinawan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sinawan | Philippines, Malaysia, Thailand, United States, Indonesia |