| Birth Date: | 19 January 1982 |
| Birth Place: | Rosenheim, West Germany |
| Position: | Midfielder |
| Youthclubs1: | SV Ramerberg |
| Youthclubs2: | 1860 Rosenheim |
| Youthyears3: | –1998 |
| Youthclubs3: | 1860 München |
| Youthyears4: | 1998–2001 |
| Youthclubs4: | Bayern Munich |
| Years1: | 2001–2004 |
| Clubs1: | Bayern Munich II |
| Caps1: | 31 |
| Goals1: | 4 |
| Years2: | 2004–2005 |
| Clubs2: | Hamburger SV II |
| Caps2: | 31 |
| Goals2: | 10 |
| Years3: | 2004–2005 |
| Clubs3: | Hamburger SV |
| Caps3: | 0 |
| Goals3: | 0 |
| Years4: | 2005–2007 |
| Clubs4: | FC Augsburg |
| Caps4: | 24 |
| Goals4: | 7 |
| Years5: | 2007–2011 |
| Clubs5: | Greuther Fürth |
| Caps5: | 89 |
| Goals5: | 11 |
| Years6: | 2011–2012 |
| Clubs6: | FC Ingolstadt 04 |
| Caps6: | 11 |
| Goals6: | 0 |
| Years7: | 2012–2014 |
| Clubs7: | Hansa Rostock |
| Caps7: | 48 |
| Goals7: | 1 |
| Years8: | 2015–2018 |
| Clubs8: | TSV Wasserburg |
| Caps8: | 8 |
| Goals8: | 0 |
| Totalcaps: | 242 |
| Totalgoals: | 33 |
| Manageryears1: | 2015–2019 |
| Managerclubs1: | TSV Wasserburg |
| Manageryears2: | 2019– |
| Managerclubs2: | Wacker Burghausen |
Leonhard Haas (born 19 January 1982, in Rosenheim) is a German retired footballer.[1]