Jan Nowak-Jeziorański (Polish pronunciation: [ˈjan ˈnɔvak jɛʑɔˈraɲskʲi]; 2 October 1914 – 20 January 2005) was a Polish journalist, writer, politician, social worker and patriot. He served during the Second World War as one of the most notable resistance fighters of the Home Army. He is best remembered for his work as an emissary shuttling between the commanders of the Home Army and the Polish Government in Exile in London and other Allied governments which gained him the nickname "Courier from Warsaw", and for his participation in the Warsaw Uprising. After the war he worked as the head of the Polish section of Radio Free Europe, and later as a security advisor to the US presidents Ronald Reagan and Jimmy Carter.
He was born Zdzisław Antoni Jeziorański, (Jeziora Coat of Arms) in Berlin, but used a number of noms de guerre during the war, the best known of which was Jan Nowak which he later added to his original surname.
Zdzisław Jeziorański was born in Berlin. He attended Gimnazjum i Liceum im. Stefana Batorego in Warsaw. After finishing his studies in economics in 1936, he worked as a teaching assistant at Poznań University. Mobilized in 1939, he fought in the Polish Army as an artillery NCO. He was taken prisoner of war by the Germans in Volhynia, but managed to escape and returned to Warsaw. Most of his colleagues were taken prisoners of war by the Soviets and later killed in the Katyn Massacre.