Mark C. Yerger (1955 – 6 September 2016) was an American author of books about the Schutzstaffel (SS) and Waffen-SS of Nazi Germany. He had close contacts to SS veterans, through whom he was able to access private archives, and wrote biographies of commanders and award recipients of the SS and of SS units. Historians of World War II have described Yerger's work as uncritical, hagiographic and whitewashing towards the SS.