John Sack (March 24, 1930 – March 27, 2004) was an American literary journalist and war correspondent. He was the only journalist to cover each American war over half a century.
Sack was born to a Jewish family in New York City. His work appeared in such periodicals as Harper's, The Atlantic, Esquire and The New Yorker. He was a war correspondent in Korea, Vietnam, Iraq, Afghanistan and the former Yugoslavia.
A correspondent and later a bureau chief for CBS News in Spain, he authored ten books, including the controversial title, An Eye for an Eye: The Untold Story of Jewish Revenge Against Germans in 1945, which described cases of persecution of Germans by Jews in post-World-War II Polish internment camps.
He died on March 27, 2004, three days after his 74th birthday, from prostate cancer in San Francisco, California, according to his New York Times obituary. He was survived by a sister, Lois Edelstein.