Natalia Tułasiewicz (9 April 1906 – 31 March 1945) was a teacher in Poznań, Poland and a leader in the Catholic lay apostolate. A member of the Polish Underground State, she died in the Ravensbrück concentration camp, in a gas chamber. Tułasiewicz was beatified in 1999 as one of the 108 Martyrs of World War II.
Natalia Tułasiewicz was born in Rzeszów on 9 April 1906. She moved with her family to Poznań in 1921, where upon graduating from the Poznań University she worked as a teacher, and was a leader in the lay apostolate.
During the occupation of Poland, her family was among the many Polish families who were dispossessed by the Germans after annexation of Poznań; thrown out of their homes with only a few hours notice. She was involved in the underground education in Kraków and was a member of the Polish Underground State. In 1943 she volunteered to leave for the Third Reich together with other women who were forced to perform heavy work, to give them spiritual comfort. When the Germans found out about her secret mission, she was arrested, tortured, and condemned to death in the Ravensbrück concentration camp. On Good Friday 1945, she climbed a stool in the barracks and spoke to the prisoners on the passion and resurrection of Jesus. Two days later, on Easter Sunday, 31 March, she died in a gas chamber. The concentration camp was liberated two days later.
- Dorota Tułasiewicz, "Nie potrafię nienawidzić nawet tych, którzy nas skrzywdzili" (I'm unable to hate even those who wronged us). "45 KB ". 45 KB , Radio Maryja, 2006-09-03. (Polish)
- Sylwia Palka, Poprzez ziemię ukochała niebo, Miesięcznik Wychowawca, Nr. 06/2007. (Polish)
- Bł. Natalia Tułasiewicz, Przeciw barbarzynstwu – Listy, Dzienniki, wspomnienia. Wydawnictwo "M", Kraków 2003.
- Natalia Tułasiewicz, Byc poetka zycia. Zapiski z lat 1938–1943. Wydawnictwo Wydziału Teologicznego UAM, Poznan, 2006.