The myth of the clean Wehrmacht is the negationist notion that the regular German armed forces were not involved in the Holocaust or other war crimes during World War II. The myth, heavily promoted by German authors and military personnel after World War II, completely denies the culpability of the German military command in the planning and perpetration of war crimes. Even where the perpetration of war crimes and the waging of an extermination campaign, particularly in the Soviet Union – where the Nazis viewed the population as "sub-humans" ruled by "Jewish Bolshevik" conspirators – has been acknowledged, they are ascribed to the "Party soldiers corps", the Schutzstaffel (SS), but not the regular German military.

Historical negationism, also called historical denialism, is falsification or distortion of the historical record. It should not be conflated with historical revisionism, a broader term that extends to newly evidenced, fairly reasoned academic reinterpretations of history. In attempting to revise the past, historical negationism acts as illegitimate historical revisionism by using techniques inadmissible in proper historical discourse, such as presenting known forged documents as genuine, inventing ingenious but implausible reasons for distrusting genuine documents, attributing conclusions to books and sources that report the opposite, manipulating statistical series to support the given point of view, and deliberately mistranslating texts.