The 108 Martyrs of World War II, known also as the 108 Blessed Polish Martyrs, were Catholics from Poland killed during World War II by Nazi Germany.

Antoni Julian Nowowiejski was a Polish bishop of Płock (1908–1941), titular archbishop of Silyum, first secretary of Polish Episcopal Conference (1918–1919), honorary citizen of Płock and historian. He died at the hands of the Germans in Soldau concentration camp near Działdowo on 28 May 1941, and was subsequently beatified by Pope John Paul II in 1999 as one of the 108 Martyrs of World War II.