| Ntl Team: | YUG |
| Played For: | HDD Tilia Olimpija |
| Position: | Right wing |
| Birth Date: | 6 March 1949 |
| Birth Place: | Ljubljana, Yugoslavia |
| Death Place: | Ljubljana, Slovenia |
| Draft: | Undrafted |
| Career Start: | 1976 |
| Career End: | 1979 |
Janez Petač (6 March 1949 – 23 May 2011) was a former Yugoslav ice hockey player. He played for the Yugoslavia men's national ice hockey team at the 1976 Winter Olympics in Innsbruck.[1]