Robert Servatius (31 October 1894 – 7 August 1983) was a German lawyer, prominent in his profession in Cologne, and especially known for his defense of Nazi war criminals, including Adolf Eichmann.
Servatius was born in Cologne on 31 October 1894. In the First World War he served as an artillery officer, and during the Second World War returned to military service, rising to the rank of Major. He was never a member of the Nazi Party, and was never connected with any of its crimes. At the Nuremberg Trials he served as a criminal defense lawyer.
Notable cases he argued included the defense of Fritz Sauckel, Karl Brandt and Paul Pleiger at Nuremberg, and of Adolf Eichmann in Jerusalem.
A number of lawyers had offered to appear for his defense, and Eichmann chose Servatius. As a result, the Israeli law had to be changed to enable this, as until that time foreign lawyers had no right of audience in the Israeli courts. The change made enabled only those facing a capital charge to be represented by a non-Israeli lawyer. Before he was appointed to defend Eichmann, Mossad investigated the history of Servatius, but they found nothing which greatly troubled them. Although hired by Eichmann, Servatius was paid by the Israeli government, following a precedent set at Nuremberg. He was assisted in the defense of Eichmann by Dieter Wechtenbruch.