Pierre-Paul-Henri-Gaston Doumergue (August 11, 1863 at Aigues-Vives, France-June 18, 1937 at Aigues-Vives, France) was a French politician of the Third Republic.

Beginning as a Radical, Doumergue became conservative in his old age. He served as Prime Minister from December 9, 1913 to June 2, 1914, President from June 13, 1924 to June 13, 1931, and again as Prime Minister in a conservative national unity government in February 9 - November 8, 1934.

Preceded by:
Louis Barthou
1913
Prime Ministers of France
1913-1914
Followed by:
Alexandre Ribot
1914
Preceded by:
Alexandre Millerand
1920-1924
President of France
1924-1931
Followed by:
Paul Doumer
1931-1932
Preceded by:
Edouard Daladier
1934
Prime Ministers of France
1934
Followed by:
Pierre-Etienne Flandin
1934-1935