Cognomen Weilon (Weilon 
) , in all the world, is a very rare family name. The cognomen Weilon is characteristic of South-eastern Asia, particularly Malaysia, where it is a rare surname. Likewise, Weilon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Weilon | United States, Brazil, Malaysia, Philippines |