| Stefan Thurnbichler | |
| Nationality: |  Austria |
| Birth Date: | 2 March 1984 |
| Birth Place: | Innsbruck, Austria |
| Personalbest: | 224 m (735 ft) Planica, 20 Mar 2003 |
| Seasons: | 2002–2011 |
| Teampodiums: | 2 |
Stefan Thurnbichler (born 2 March 1984) is an Austrian former ski jumper who competed from 2000 to 2011. He won the Continental Cup three times, but was not a regular competitor at World Cup level. On 20 Mar 2003 in Planica, Thurnbichler achieved a personal best jump of 224 metres, only a metre short of the world record at the time. In 2009 he was part of the Austrian team in the World Cup and often placed in the top 10.