Konstanty Skirmunt (Russian: Константи́н Ге́нрихович Ски́рмунт) (30 August 1866[1] – 24 July 1949[2]) was a Polish politician.
During 1907—1914 he was a member of the State Council of the Russian Empire. He was a member of the Polish National Committee in Paris in 1917–1918, Polish ambassador in Rome in 1919–1921, Polish Minister of Foreign Affairs in 1921–22, and Polish ambassador in London in 1919–1934.[3]