Jakob Frank Denzinger (June 29, 1924 – February 11, 2016) was a concentration camp and extermination-death camp guard during the Holocaust in Nazi Germany at five separate concentration camps across three countries, as well as a member of the SS-Totenkopfverbände. In 1956, Denzinger fled to the United States, becoming a naturalized citizen in 1972. Denzinger fled the US in 1989 in advance of his denaturalization. An Associated Press investigation reported in October 2014 that despite being denaturalized, Denzinger was still receiving monthly Social Security payments.