Feodor Fedorenko, or Fyodor Federenko (Ukrainian: ????? ?????????; Fedir Fedorenko; Russian: ????? ?????????? ?????????; 17 September 1907 – c.
July 1987) was a war criminal serving at Treblinka extermination camp in German occupied Poland during World War II.
As a former Soviet citizen admitted to the United States under a DPA visa (1949), Fedorenko became a naturalized U.S.
citizen in 1970.
He was discovered in 1977 and denaturalized in 1981.
Subsequently, he was extradited to the USSR, sentenced there to death for treason against his nation and participation in the Holocaust, and was executed.