Cognomen Saweng (Saweng 
) , worldwide, is a rare family name. The family name Saweng is characteristic of South-eastern Asia, particularly Malaysia, where it is a rare surname, and Indonesia, where it is a very rare surname. Much less frequently, Saweng is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saweng | Brazil, Malaysia, Indonesia, Thailand, South Africa |