Baron Emil von Dungern (26 November 1867 – 4 September 1961) was a German internist.^[1] He was born in Würzburg and died in Bodman-Ludwigshafen.

Von Dungern worked at the Heidelberg Institute for Experimental Cancer Research where he was the director of the scientific section. Ludwik Hirszfeld, the co-discoverer of the heritability of ABO blood groups, was his research assistant from 1907 to 1911.^[2] Hirszfeld, in his work Historia (1967), described von Dungern as "a spiritual poet who had to fall in love with a problem in order to be able to work on it ... He was a flame burning from within."^{[note 1][3]}