Stephanie Zimmermann (October 29, 1973-November 10, 2020) was a German physicist who worked on the ATLAS experiment at the Large Hadron Collider at CERN.

Zimmermann studied physics at the University of Freiburg, where she earned Master's and Ph.D. degrees, supervised by R. Schneider, Gregor Herten, and A. Bamberger.

[1] As a master's student in 1999, Zimmermann joined the ATLAS experiment, working on the muon system of the Large Hadron Collider at CERN.

The largest phase 1 upgrade project for the ATLAS Muon System is the replacement of the present first station in the forward regions with the so-called New Small Wheels.

[1] She was also awarded the 2006 Marc Virchaux Prize "for best Ph.D. thesis concerned with the design and construction of, and the analysis of data from, the ATLAS muon spectrometer.