Constantin Coandă (4 March 1857, Craiova – 30 September 1932 Bucharest) was a Romanian soldier and politician. He reached the rank of general in the Romanian Army, and later became a mathematics professor at the National School of Bridges and Roads in Bucharest. Among his seven children was Henri Coandă, the discoverer of the Coandă effect.
During World War I, for a short time (24 October – 29 November 1918), he was the Prime Minister of Romania and the Foreign Affairs Minister. He participated in the signing of the Treaty of Neuilly between the Allies of World War I and Bulgaria.
During his term as president of the Romanian Senate (representing Alexandru Averescu's People's Party), Coandă was badly wounded on December 8, 1920 by a bomb set up by the terrorist and anarchist Max Goldstein.