Wilhelm Marx, German lawyer and politician, 17th Chancellor of Germany (died 1946)

Wilhelm Marx was a German judge, lawyer, and politician who twice served as chancellor of Germany during the Weimar Republic, from 1923 to 1925 and again from 1926 to 1928. He also briefly held the position of Minister-President of Prussia in 1925. A leading figure in the Centre Party, he served as its chairman from 1922 to 1928. With a total tenure of three years and 73 days, he was the longest-serving chancellor of the Weimar Republic.

The chancellor of Germany, officially the federal chancellor of the Federal Republic of Germany, is the head of the federal government of Germany. The chancellor is the chief executive of the Federal Cabinet and heads the executive branch. The chancellor is elected by the Bundestag on the proposal of the federal president and without debate. During a state of defence declared by the Bundestag the chancellor also assumes the position of commander-in-chief of the Bundeswehr.