| Stefanie von Siebenthal | |
| Nickname: | Steffi |
| Nationality: | Swiss |
| Birth Date: | 8 November 1977 |
| Birth Place: | Saanen, Switzerland |
| Country: | Switzerland |
| Sport: | Snowboarding |
Stefanie von Siebenthal (born 8 November 1977) is a Swiss snowboarder.
Siebenthal was born in Saanen. She competed at the 1998 Winter Olympics, in giant slalom, and at the 2002 Winter Olympics.[1]