Pierre Joseph Auguste Messmer (French pronunciation: ​[pjɛʁ mɛsmɛʁ]; 20 March 1916 – 29 August 2007) was a French Gaullist politician. He served as Minister of Armies under Charles de Gaulle from 1960 to 1969 – the longest serving since Étienne François, duc de Choiseul under Louis XV – and then as Prime Minister under Georges Pompidou from 1972 to 1974.