| Intro | Zimmermann bei der Eisenbahnverwaltung von Deutsch-Südwestafrika |
| Is | Carpenter |
| From | Namibia |
| Gender | male |
Johannes Hartmann (Amberg, 14 January 1568 – Kassel, 7 December 1631) was a German chemist.
In 1609, he became the first Professor of Chemistry at the University of Marburg. His teaching dealt mainly with pharmaceuticals. He was the father-in-law of Heinrich Petraeus.