Feodor Fedorenko, or Fyodor Federenko (Ukrainian: Федір Федоренко; Fedir Fedorenko; Russian: Фёдор Демьянович Федоренко; 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.