| Birth Date: | 13 May 1989 |
| Birth Place: | Speyer, West Germany |
| Position: | Attacking Midfielder |
| Currentclub: | KSV Hessen Kassel |
| Clubnumber: | 21 |
| Youthclubs1: | FV Heiligenstein |
| Youthyears2: | –2006 |
| Youthclubs2: | 1. FC Kaiserslautern |
| Youthyears3: | 2006–2008 |
| Youthclubs3: | 1899 Hoffenheim |
| Years1: | 2008–2009 |
| Clubs1: | 1860 Munich II |
| Caps1: | 7 |
| Goals1: | 0 |
| Years2: | 2009–2011 |
| Clubs2: | 1. FC Kaiserslautern II |
| Caps2: | 53 |
| Goals2: | 1 |
| Years3: | 2011–2012 |
| Clubs3: | VfR Aalen |
| Caps3: | 11 |
| Goals3: | 0 |
| Years4: | 2012– |
| Clubs4: | KSV Hessen Kassel |
| Caps4: | 13 |
| Goals4: | 0 |
| Club-Update: | December 10, 2012 |
Jonas Marz (born 13 May 1989) is a German footballer who plays for KSV Hessen Kassel.