Georg Pfotzer (29 November 1909 – 24 July 1981) was a German physicist.
He was a student of Erich Regener in the 1930s and worked with Regener to investigate cosmic rays by using balloons to carry scientific instruments such as Geiger counters to the upper atmosphere. The terms Pfotzer curve and Pfotzer maximum, relating to the distribution of charged particles in the atmosphere resulting from cosmic rays, are named after him. It has been suggested that this is misleading, as Regener was the principal investigator, but he was persecuted and forced to resign during the Nazi era as his wife was of Jewish ancestry.
He was director of the Max Planck Institute for Solar System Research between 1965 and 1977.