First five-year plan (Soviet Union)

The first five-year plan (Russian: I пятилетний план, первая пятилетка) of the Union of Soviet Socialist Republics (USSR) was a list of economic goals, implemented by Communist Party General Secretary Joseph Stalin, based on his policy of socialism in one country. Leon Trotsky had delivered a joint report to the April Plenum of the Central Committee in 1926 which proposed a program for national industrialisation and the replacement of annual plans with five-year plans. His proposals were rejected by the Central Committee majority which was controlled by the troika and derided by Stalin at the time. Stalin's version of the five-year plan was implemented in 1928 and took effect until 1932.

The Soviet Union entered a series of five-year plans which began in 1928 under the rule of Joseph Stalin. Stalin launched what would later be referred to as a "revolution from above" to improve the Soviet Union's domestic policy. The policies were centered around rapid industrialization and the collectivization of agriculture. Stalin desired to remove and replace the mixed-economy policies of the New Economic Policy. Some scholars have argued that the programme of mass industrialisation advocated by Leon Trotsky and the Left Opposition was co-opted after Trotsky's exile to serve as the basis of Stalin's first five-year plan. According to historian Sheila Fitzpatrick, the scholarly consensus was that Stalin appropriated the position of the Left Opposition on such matters as industrialisation and collectivisation.