| Michael Kostner | |
| Birth Date: | 1969 2, df=yes |
| Birth Place: | Munich,[1] West Germany |
| Height: | 1.88 m |
| Position: | Defender, defensive midfielder |
| Currentclub: | TSV Dorfen (manager) |
| Youthclubs1: | Bayern Munich |
| Youthclubs2: | Phönix Schleißheim |
| Youthclubs3: | TSV Ludwigsfeld |
| Years1: | 1987–1989 |
| Clubs1: | Eintracht Frankfurt |
| Caps1: | 14 |
| Goals1: | 0 |
| Years2: | 1989–1991 |
| Clubs2: | Kickers Offenbach |
| Years3: | 1991–1993 |
| Clubs3: | 1. FC Saarbrücken |
| Caps3: | 58 |
| Goals3: | 9 |
| Years4: | 1993–1995 |
| Clubs4: | Hamburger SV |
| Caps4: | 28 |
| Goals4: | 0 |
| Years5: | 1995–1996 |
| Clubs5: | FC Homburg |
| Years6: | 1996–1998 |
| Clubs6: | 1. FC Köln |
| Caps6: | 31 |
| Goals6: | 0 |
| Years7: | 1998–2000 |
| Clubs7: | Wacker Burghausen |
| Manageryears1: | 2000–2002 |
| Managerclubs1: | Wacker Burghausen (youth) |
| Manageryears2: | 2002–2006 |
| Managerclubs2: | Wacker Burghausen II |
| Manageryears3: | 2006–2007 |
| Managerclubs3: | ESV Freilassing |
| Manageryears4: | 2007–2012 |
| Managerclubs4: | TSV Ampfing |
| Manageryears5: | 2012– |
| Managerclubs5: | TSV Dorfen[2] |
Michael Kostner (born 7 February 1969) is a German football coach and a former player[3] who is currently, as of 1 July 2012, is managing TSV Dorfen.