Oskar Georg Fischbach (14 December 1880 – 1967) was a German lawyer and civil servant who was involved in drafting the civil service law at the end of the Weimar Republic and various official laws of Nazi Germany.

Oskar Georg Fischbach was born in Strasbourg, then in Germany, on 14 December 1880.

He worked on drafts of the Nazi laws, including the German Civil Service act of 1937.

[2] In 1945 he was appointed the last president of the National Debt Office, succeeding Ernst Articus.

[3] After World War II (1939–45) the arbitration board of the Greater Berlin Magistrature rejected his denazification.