Cognomen Wonghon (Wonghon 
) , worldwide, is a very rare last name. The cognomen Wonghon is characteristic of Brazil, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Much less frequently, Wonghon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wonghon | China, Brazil, Thailand |