| Birth Date: | 1989 12, df=yes[1] |
| Birth Place: | Hann. Münden, West Germany |
| Position: | Goalkeeper |
| Currentclub: | Hessen Kassel |
| Clubnumber: | 39 |
| Youthclubs1: | SG Reinhardshagen |
| Youthclubs2: | KSV Hessen Kassel |
| Youthyears3: | –2009 |
| Youthclubs3: | Arminia Bielefeld |
| Years1: | 2008–2011 |
| Clubs1: | Arminia Bielefeld II |
| Caps1: | 45 |
| Goals1: | 0 |
| Years2: | 2009–2011 |
| Clubs2: | Arminia Bielefeld |
| Caps2: | 1 |
| Goals2: | 0 |
| Years3: | 2011–2014 |
| Clubs3: | Rot-Weiß Oberhausen |
| Caps3: | 18 |
| Goals3: | 0 |
| Years4: | 2013 |
| Clubs4: | → Rot-Weiß Oberhausen II |
| Caps4: | 1 |
| Goals4: | 0 |
| Years5: | 2014–2015 |
| Clubs5: | KSV Baunatal |
| Caps5: | 27 |
| Goals5: | 0 |
| Years6: | 2015– |
| Clubs6: | Hessen Kassel |
| Caps6: | 113 |
| Goals6: | 0 |
| Years7: | 2016 |
| Clubs7: | → Hessen Kassel II |
| Caps7: | 1 |
| Goals7: | 0 |
| Club-Update: | 27 October 2020 |
Niklas Hartmann (born 9 December 1989) is a German footballer[2] who plays for Hessen Kassel.