Japanese Sgt. Shoichi Yokoi is found hiding in a Guam jungle, where he had been since the end of World War II.

Japanese holdouts (Japanese: , romanized: Zanry nipponhei, lit.'remaining Japanese soldiers') were soldiers of the Imperial Japanese Army and Imperial Japanese Navy during the Pacific Theatre of World War II who continued fighting World War II after the surrender of Japan in August 1945. Japanese holdouts either doubted the veracity of the formal surrender or were not aware that the war had ended because communications had been cut off by Allied advances.

After Japan officially surrendered in August 1945, Japanese holdouts in Southeast Asian countries and Pacific islands that had been part of the Japanese empire continued to fight local police, government forces, and American and British forces stationed to assist the newly formed governments. Many holdouts were discovered in Southeast Asia and the Pacific Islands over the following decades, with the last verified holdout, Private Teruo Nakamura, surrendering on Morotai Island in Indonesia in December 1974.

Newspapers throughout East Asia and Pacific islands reported more holdouts and searches for them were conducted until the late 1980s, but the evidence was too scant and no further holdouts were confirmed. Nevertheless, holdouts continued to be allegedly spotted until the late 1990s. Investigators now believe that the last alleged sightings of Japanese holdouts were stories invented by local residents to attract tourists.

Some Japanese soldiers acknowledged Japan's surrender and the end of World War II, but were reluctant to demobilize and wished to continue armed combat for ideological reasons. Many fought in the Chinese Civil War, Korean War, and local independence movements such as the First Indochina War and Indonesian National Revolution. These Japanese soldiers are not usually considered holdouts.

Shōichi Yokoi (横井 庄一, Yokoi Shōichi, 31 March 1915 – 22 September 1997) was a sergeant in the Imperial Japanese Army (IJA) during the Second World War, and was among the last three Japanese holdouts to be found after the end of hostilities in 1945. He was discovered in the jungles of Guam on 24 January 1972, almost 28 years after U.S. forces had regained control of the island in 1944.