Iva Ikuko Toguri D'Aquino (July 4, 1916 – September 26, 2006) was an American who participated in English-language radio broadcasts transmitted by Radio Tokyo to Allied soldiers in the South Pacific during World War II on The Zero Hour radio show.
Toguri called herself "Orphan Ann", but she quickly became inaccurately identified with the name "Tokyo Rose", coined by Allied soldiers and which predated her broadcasts. After the Japanese defeat, Toguri was detained for a year by the United States military before being released for lack of evidence. Department of Justice officials agreed that her broadcasts were "innocuous", but when Toguri tried to return to the US a popular uproar ensued, prompting the Federal Bureau of Investigation to renew its investigation of Toguri's wartime activities.
She was subsequently charged by the United States Attorney's Office with eight counts of treason. Her 1949 trial resulted in a conviction on one count, for which she spent more than six years out of a ten-year sentence in prison. Journalistic and governmental investigators years later pieced together the history of irregularities with the indictment, trial, and conviction, including confessions from key witnesses who had perjured themselves at the various stages of their testimonies. Toguri received a pardon in 1977 from U.S. President Gerald Ford.