Erich Häßler (April 22, 1899 – December 2, 2005) was a German pediatrician and academic from Leipzig, Saxony. He was also one of the last surviving veterans of the First World War living in Germany. Häßler was a professor at the university of Jena. Under the Nazis, he was member of the "Office for Racial Policy" ("Rassenpolitisches Amt") in Leipzig. In 1939, he co-authored a book on child care, in which he called Jews "rootless parasites" ("wurzelloses Parasitentum").[citation needed]