Erika Pannwitz (May 26, 1904 in Hohenlychen, Germany – November 25, 1975 in Berlin) was a German mathematician who worked in the area of geometric topology. During World War II, Pannwitz worked as a cryptanalyst in the Department of Signal Intelligence Agency of the German Foreign Office (German: Auswärtiges Amt) colloquially known as Pers Z S. After the war, she became editor-in-chief of Zentralblatt MATH.