| Birth Date: | 1991 12, df=yes |
| Birth Place: | Burglengenfeld, Germany[1] |
| Position: | Defender |
| Currentclub: | DJK Vilzing |
| Clubnumber: | 17 |
| Youthyears1: | –2007 |
| Youthclubs1: | Bayern Munich |
| Youthyears2: | 2007–2010 |
| Youthclubs2: | 1. FC Nürnberg |
| Youthyears3: | 2010 |
| Youthclubs3: | VfR Aalen |
| Years1: | 2010–2011 |
| Clubs1: | VfR Aalen |
| Caps1: | 0 |
| Goals1: | 0 |
| Years2: | 2011 |
| Clubs2: | SV Seligenporten |
| Caps2: | 9 |
| Goals2: | 2 |
| Years3: | 2011–2016 |
| Clubs3: | Jahn Regensburg |
| Caps3: | 59 |
| Goals3: | 3 |
| Years4: | 2016– |
| Clubs4: | DJK Vilzing |
| Caps4: | 152 |
| Goals4: | 27 |
| Club-Update: | 30 April 2024 |
Fabian Trettenbach (born 17 December 1991) is a German footballer who plays for DJK Vilzing.[2] He made his debut for Regensburg on 20 July 2013 in a 3. Liga match against SpVgg Unterhaching.[3]