Bronisław Kostkowski (March 11, 1915 – September 27, 1942) was a Polish and Roman Catholic seminarian. He was born in Słupsk. He was imprisoned in the Nazi Sachsenhausen concentration camp and later died at the Nazi Dachau concentration camp. He is one of the 108 Martyrs of World War II who were beatified by Pope John Paul II in 1999.^[1]

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• List of Nazi-German concentration camps
• The Holocaust in Poland
• World War II casualties of Poland