Gustav Ernst Stresemann (German pronunciation: [ˈɡʊstaf ˈʃtʁeːzəˌman] (listen); 10 May 1878 – 3 October 1929) was a German statesman who served as chancellor in 1923 (for 102 days) and as foreign minister from 1923 to 1929, during the Weimar Republic.

His most notable achievement was the reconciliation between Germany and France, for which he and French Prime Minister Aristide Briand received the Nobel Peace Prize in 1926. During a period of political instability and fragile, short-lived governments, he was the most influential cabinet member in most of the Weimar Republic's existence. During his political career, he represented three successive liberal parties; he was the dominant figure of the German People's Party during the Weimar Republic.