Pierre-Étienne Flandin (French: [pjɛʁ etjɛn flɑ̃dɛ̃]; 12 April 1889 – 13 June 1958) was a French conservative politician of the Third Republic, leader of the Democratic Republican Alliance (ARD), and Prime Minister of France from 1934 to 1935.

[1][2] A military pilot during World War I,[3] Flandin held a number of cabinet posts during the interwar period.

In 1934 (6 February to 8 November), he was Minister of Public Works in the second cabinet of Gaston Doumergue.

[3] Flandin was the French Foreign Minister when Adolf Hitler ordered the Wehrmacht to reoccupy the Rhineland on 7 March 1936.

[7] After the Liberation of France, Flandin was put on trial for treason but the high court acquitted him.