| Player | Matches | Goals | Penalties | First match | Last match |
|---|---|---|---|---|---|
| Jatta, Nuha | 5 | 0 | 0 | 2024-09-07 | 2024-10-15 |
| Jeltsch, Finn | 7 | 0 | 0 | 2024-09-07 | 2025-03-22 |
| Jensen, Morten | 1 | 0 | 0 | 2006-04-26 | 2006-04-26 |
| Jensen, Pelle | 2 | 0 | 0 | 2010-11-17 | 2011-02-08 |
| Jessen, Niklas | 5 | 0 | 0 | 2021-11-13 | 2022-03-29 |
| John, Marco | 1 | 0 | 0 | 2020-09-03 | 2020-09-03 |
| Johnson, Fabian | 11 | 0 | 0 | 2005-09-14 | 2006-05-26 |
| Jordanov, Edisson | 2 | 0 | 0 | 2012-04-17 | 2012-05-30 |
| Jungwirth, Florian | 16 | 0 | 0 | 2007-09-07 | 2008-07-26 |
| Jurkovic, Milan | 1 | 0 | 0 | 2002-03-28 | 2002-03-28 |
| Kabadayi, Yusuf | 6 | 1 | 0 | 2022-09-21 | 2023-05-10 |
| Kabar, Almugera | 14 | 1 | 0 | 2024-09-07 | 2025-06-23 |
| Kachunga, Elias | 7 | 3 | 0 | 2010-08-18 | 2011-03-29 |
| Kacinoglu, Koray | 2 | 0 | 0 | 2012-09-06 | 2012-09-10 |
| Kade, Anton | 8 | 2 | 0 | 2021-11-10 | 2022-11-29 |
| Kade, Julius | 2 | 0 | 0 | 2017-09-05 | 2018-04-25 |
| Kamga, Enis Vauclain | 4 | 0 | 0 | 2025-09-09 | 2025-11-15 |
| Kammerbauer, Patrick | 1 | 0 | 0 | 2015-11-15 | 2015-11-15 |
| Kaptan, Cihan | 6 | 0 | 0 | 2007-09-07 | 2008-03-12 |
| Kärcher, Marcel | 5 | 2 | 0 | 2012-08-14 | 2012-10-13 |
| Kargbo, Abu Bakarr | 1 | 0 | 0 | 2010-09-02 | 2010-09-02 |
| Karius, Loris | 1 | 0 | 0 | 2011-09-04 | 2011-09-04 |
| Karl, Markus | 1 | 0 | 0 | 2004-09-15 | 2004-09-15 |
| Katterbach, Noah | 5 | 0 | 0 | 2019-09-04 | 2019-10-15 |
| Kaya, Fatih | 1 | 0 | 0 | 2018-04-25 | 2018-04-25 |
| Kaygin, Dennis | 2 | 0 | 0 | 2022-10-20 | 2022-10-25 |
| Kehrer, Emilio | 1 | 0 | 0 | 2020-09-03 | 2020-09-03 |
| Kehrer, Thilo | 5 | 1 | 0 | 2015-03-26 | 2015-07-13 |
| Kemlein, Aljoscha | 4 | 0 | 0 | 2022-10-20 | 2023-05-10 |
| Kempe, Dennis | 4 | 0 | 0 | 2005-07-18 | 2005-07-26 |
| Kempf, Marc Oliver | 18 | 0 | 0 | 2013-08-14 | 2014-07-31 |
| Kerk, Sebastian | 11 | 5 | 0 | 2012-08-14 | 2013-06-10 |
| Kesik, Mesut | 7 | 2 | 1 | 2021-09-03 | 2021-11-16 |
| Khadr, Mika | 1 | 0 | 0 | 2025-05-14 | 2025-05-14 |
| Khedira, Rani | 2 | 1 | 0 | 2012-11-14 | 2013-03-25 |
| Kijewski, Niko | 9 | 0 | 0 | 2014-09-05 | 2015-03-28 |
| Kilian, Luca | 4 | 0 | 0 | 2017-08-31 | 2018-03-24 |
| Kılıçarslan, Erdal | 10 | 10 | 0 | 2002-08-29 | 2003-05-23 |
| Kimmich, Joshua | 9 | 1 | 0 | 2013-11-13 | 2014-07-31 |
| Kiprit, Muhammed | 1 | 0 | 0 | 2018-04-25 | 2018-04-25 |
| Kiral, Volkan | 2 | 1 | 0 | 2001-11-15 | 2002-05-02 |
| Kirchhoff, Jan | 8 | 1 | 0 | 2008-09-07 | 2009-05-23 |
| Kirschbaum, Thorsten | 6 | 0 | 0 | 2006-01-27 | 2006-05-30 |
| Klaas, Sebastian | 1 | 0 | 0 | 2017-04-17 | 2017-04-17 |
| Klanac, Leon | 3 | 0 | 0 | 2025-09-09 | 2025-11-18 |
| Klaus, Felix | 3 | 0 | 0 | 2010-11-17 | 2011-03-29 |
| Klefisch, Ben | 3 | 0 | 0 | 2021-09-03 | 2022-05-11 |
| Klein, Daniel | 2 | 0 | 0 | 2019-09-09 | 2019-11-15 |
| Klemens, Pascal | 7 | 0 | 0 | 2023-10-11 | 2024-03-23 |
| Klostermann, Lukas | 11 | 0 | 0 | 2014-09-05 | 2015-07-13 |