The five-year plan for the development of the national economy in the Soviet Union (USSR) (Russian: Пятиле́тние пла́ны разви́тия наро́дного хозя́йства СССР, Pjatiletnije plany razvitiya narodnogo khozyaystva SSSR) was a series of nationwide centralized economic plans in the Soviet Union. The plans were developed by the state planning committee Gosplan based on the theory of the productive forces that was part of the ideology of the Communist Party for development of the Soviet economy. Fulfilling the plan became the watchword of Soviet bureaucracy (see Overview of the Soviet economic planning process).
The same method of planning was also adopted by most other communist states, including the People's Republic of China. Nazi Germany emulated the practice in its four-year plan designed to bring Germany to war-readiness. Although the Republic of Indonesia is known for its anti-communist purge, the Soeharto government also adopted the same method of planning. This series of five-year plans in Indonesia was termed REPELITA (Rencana Pembangunan Lima Tahun) I to VI from 1969 to 1998.
Several five-year plans did not take up the full period of time assigned to them: some were successfully completed earlier than expected, while others failed and were abandoned. Altogether, there were thirteen five-year plans. The initial five-year plans were created to serve in the rapid industrialization of the Soviet Union and thus placed a major focus on heavy industry. The first one was accepted in 1928, for the period from 1929 to 1933, and completed one year early. The last five-year plan was for the period from 1991 to 1995 and was not completed, since the Soviet Union was dissolved in 1991.