Helmut Krausnick (1905–1990) was a German historian and author.
From 1959 to 1972, he was the head of the Institute of Contemporary History, a leading German research institute on the history of National Socialism.
Krausnick co-authored Die Truppe des Weltanschauungskrieges, the 1981 work on the mass murder of Jews in the occupied territories of the Soviet Union by the Einsatzgruppen, which was considered a milestone in Holocaust studies.
It was also one of the first publications to challenge the myth of the "clean" Wehrmacht.