Fritz Walther Meissner (German: Meißner) (December 16, 1882 – November 16, 1974) was a German technical physicist.Meissner was born in Berlin to Waldemar Meissner and Johanna Greger. He studied mechanical engineering and physics at the Technical University of Berlin, his doctoral supervisor being Max Planck. He then entered the Physikalisch-Technische Bundesanstalt in Berlin.