Count Leopold Berchtold, Austrian-Hungarian politician and diplomat, Joint Foreign Minister of Austria-Hungary (d. 1942)

Leopold Anton Johann Sigismund Josef Korsinus Ferdinand Graf Berchtold von und zu Ungarschitz, Frättling und Püllütz (Hungarian: Gróf Berchtold Lipót, Czech: Leopold hrabě Berchtold z Uherčic) (18 April 1863 – 21 November 1942) was an Austro-Hungarian politician, diplomat and statesman who served as Imperial Foreign Minister at the outbreak of World War I.