Cognomen Vonce (Vonce 
, Schwanz 
) , around the globe, is quite a rare family name. The cognomen Vonce is characteristic of Germany, where it is quite a rare surname, Brazil, where it is a rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Vonce | Venezuela, United States, Singapore |
| Schwanz | Brazil, United Kingdom, Canada, United States, Germany |