Yamashita's gold, also referred to as the Yamashita treasure, is the name given to the alleged war loot stolen in Southeast Asia by Japanese forces during World War II and hidden in caves, tunnels, underground complexes, or just underground in the Philippines. It is named for the Japanese general Tomoyuki Yamashita, nicknamed "The Tiger of Malaya". Though accounts that the treasure remains hidden in the Philippines have lured treasure hunters from around the world for over fifty years, its existence is dismissed by most experts. The rumored treasure has been the subject of a complex lawsuit that was filed in a Hawaiian state court in 1988 involving a Filipino treasure hunter, Rogelio Roxas, and the former Philippine president, Ferdinand Marcos.
Prominent among those arguing for the existence of Yamashita's gold are Sterling Seagrave and Peggy Seagrave, who have written two books relating to the subject: The Yamato Dynasty: The Secret History of Japan's Imperial Family (2000) and Gold Warriors: America's Secret Recovery of Yamashita's Gold (2003). The Seagraves contend that looting was organized on a massive scale, by both yakuza gangsters such as Yoshio Kodama, and the highest levels of Japanese society, including Emperor Hirohito. The Japanese government intended that loot from Southeast Asia would finance Japan's war effort. The Seagraves allege that Hirohito appointed his brother, Prince Yasuhito Chichibu, to head a secret organization called Kin no yuri ("Golden Lily"), for this purpose. It is purported that many of those who knew the locations of the loot were killed during the war, or later tried by the Allies for war crimes and executed or incarcerated. Yamashita himself was convicted of war crimes and executed by the U.S. Army on February 23, 1946 in Bayambang, Pangasinan, the Philippines.