Fugitives wanted by Poland

Mieczysław Kosmowski (born 1913; disappeared 1944) was a Polish Nazi collaborator, Gestapo agent and war criminal. He is responsible for Wąsocz Pogrom in Jedwabne Pogrom, Szczuczyn Pogrom and Pogrom in Łomża.

Bogdan Eugeniusz Arnold (February 17, 1933 - December 16, 1968) was a Polish serial killer who murdered 4 women in Katowice from October 1966 to May 1967, hiding their bodies in his apartment. In his testimony, he also admitted to one more attempted murder and to torturing his victims.

Ivan the Terrible is the nickname given to a notorious guard at the Treblinka extermination camp during the Holocaust, identified as Ivan Marchenko in statements made by other guards. The moniker alluded to Ivan IV, also known as Ivan the Terrible, the infamous Tsar of Russia. "Ivan the Terrible" gained international recognition following the 1986 John Demjanjuk case. Already in 1944 a cruel guard named "Ivan", sharing the distinct duties and the extremely violent behavior with a guard named "Nicholas", is mentioned in survivor literature (Rok w Treblince by Jankiel Wiernik, translated into English as A Year in Treblinka in 1945). John Demjanjuk was first accused of being Ivan the Terrible at the Treblinka concentration camp. He was found guilty of war crimes and was sentenced to death by hanging. This decision was later overruled by the Supreme Court of Israel. In 2011 Demjanjuk was convicted of war crimes for having served at Sobibor extermination camp.

Katarzyna Onyszkiewiczowa (1840 – March 9, 1895), known as The Female Demon (Polish: Demon Kobiecy) among other purported names, was a Polish thief and serial killer who was responsible for at least three murders in Galicia from 1869 to 1870. She was convicted of these deaths in separate trials, and eventually died behind bars while serving one of her sentences.

Jacek Piotr Jaworek (born 21 May 1969 in Częstochowa) is a Polish former Construction worker who on July 10, 2021, in the village of Borowce allegedly killed his brother, sister in law and their 17-year-old son with a firearm after an altercation between them had taken place. Despite engagement of 200 police officers, European arrest warrant and Interpol red notice, authorities were unable to detain him and as of July 2023 his whereabouts are unknown. Europol had put Jaworek on the "EU Most Wanted" list.