Karol Niemira (28 October 1881, Warsaw – 8 July 1965, Czubin) was a Polish Roman Catholic priest in the Second Polish Republic, a Doctor of Canon law, and Auxiliary Bishop of Pińsk appointed in 1933, six years before the Nazi German and Soviet invasion of Poland. He was expelled from Pińsk (now Pinsk, Belarus) by the NKVD authorities, and relocated to German occupied Warsaw. He served at a parish next to the Warsaw Ghetto, and participated in the rescue of Jews during the Holocaust in Poland. After World War II Niemira resided in Warsaw and in Czubin where he died.