What was the name of Japan's surrender document signed aboard USS Missouri in 1945?

The document signed aboard USS Missouri in 1945 was the Japanese Instrument of Surrender.

The instrument recorded Japan's acceptance of the terms set out in the Potsdam Declaration. It required Japan to cease hostilities, disarm its forces, and carry out the orders of the Supreme Commander for the Allied Powers. The document was signed on 2 September 1945 in Tokyo Bay.

Mamoru Shigemitsu signed for the Japanese government, and General Yoshijiro Umezu signed for Imperial General Headquarters. Douglas MacArthur signed for the Allied powers, followed by representatives of the United States, China, the United Kingdom, the Soviet Union, Australia, Canada, France, the Netherlands, and New Zealand.

The Instrument of Surrender is distinct from the later peace treaty with Japan. The surrender document ended active hostilities, while the Treaty of San Francisco, which took effect in 1952, formally restored Japan's sovereignty and ended the Allied occupation.