In all the world, Siegenthaler (Siegenthaler 
) is a very rare boy's forename. The first name Siegenthaler is habitual in Western Europe, particularly Switzerland, where it is a rare boy's name. More prevalently, Siegenthaler is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Siegenthaler | Switzerland, France, United States, Argentina, Germany |