Irena Morzycka-Iłłakowicz (also as Iłłakowiczowa, 26 July 1906 – 4 October 1943) was a Polish second Lieutenant of the National Armed Forces and intelligence agent.
The daughter of Bolesław Morzycki and Władysława Zakrzewska and the sister of Jerzy, she was also a polyglot who spoke seven languages: Polish, French, English, Persian, Finnish, German and Russian.
After returning to the Second Polish Republic (which had regained independence in the aftermath of the First World War), she attended a school led by the Sisters of the Holy Heart of Jesus in Zbylitowska Góra.
In October 1939, after both the German invasion of Poland on 1 September and Soviet invasion of Poland on 17 September, Iłłakowiczowa joined the Polish resistance movement; in particular, she co-operated with Organizacja Wojskowa Związek Jaszczurczy.
Irena and her husband Jerzy lived at different addresses in order to avoided being arrested by the Gestapo.
Speaking German fluently, Iłłakowicz went to Berlin, where the contact point of branch of sub-section "Zachód" was located.
A bribed guard put her in the group of non-political prisoners to be transported to the Majdanek camp.
Dressed in Gestapo uniforms, they came to the camp and presented a falsified document saying that Irena was to be brought to Warsaw for more interrogation.
Nine days before the trip, on the night of 4 October 1943, Iłłakowicz was summoned to a meeting on an important issue.
Jerzy, her husband, started searching for her, and found her body in the infirmary at Oczki Street.