Philipp Dengel (15 December 1888 – 28 March 1948) was a German communist journalist and politician. Dengel was a member of the Reichstag for the Communist Party of Germany (KPD) between 1924 and 1930, a member of the KPD Central Committee and Politburo, and an editor of Die Rote Fahne. Dengel was a close ally of KPD leader Ernst Thälmann until they fell out over the so-called Wittorf affair in 1928, for which he was demoted within the KPD and removed as a candidate for the 1930 federal election. Dengel lived principally in Moscow and worked as an official for Comintern between 1931 and 1947.[1][2][3] Dengel returned to Germany shortly before his death in East Berlin in 1948.