Square of Pervoy Pyatiletki, Regional cultural heritage site in Ordzonikidsevski district, Russia.

The Square of Pervoy Pyatiletki lies on level ground in front of the main gate of the Uralmash plant, at the crossing of Mashinostroiteley Street and Ordzhonikidze Avenue. Three streets radiate north from it: Culture Boulevard, Ordzhonikidze Avenue and Ilyicha Street, with the avenue forming the axis of symmetry. Architect Pyotr Oransky designed the square; its buildings went up mainly between 1928 and 1935, starting with the plant gatehouses (1930) and the Madrid hotel (1933).

The square was not part of the original Uralmash social city plan; it was designed by architect Pyotr Oransky, with V. V. Bezrukov, M. V. Reysher and S. A. Vasilyev, and built mainly between 1928 and 1935. The first structures were the factory gates (1930), houses at Ilyicha 2 (1931) and Kultury 2 (1932); the Madrid hotel and granite paving followed in 1933, and the factory administration building in 1935.

The square's name refers to the First Five-Year Plan of 1928–1932, during which the Uralmash plant and its surrounding district were built. Its three radiating streets are named after Sergei Ordzhonikidze, Vladimir Lenin (Ilyich) and Culture. The square is still used for public gatherings, and in 2019 the artist Pokras Lampas painted a large Suprematist cross here, which drew strong public reaction.

The square lies at the junction of Mashinostroiteley Street and Ordzhonikidze Avenue, in front of Uralmash's main factory gate. Trams (route 5), trolleybuses (29, 30, 38) and marshrutkas stop at the square; the Uralmash metro station is 1.2 km to the east. The three-ray junction of Ilyicha Street, Ordzhonikidze Avenue and Kultury Boulevard opens to the north.

The square was named after the Soviet economic program and carries a name that few visitors recognize today. This historical naming makes it an interesting example of how political ideals were connected to urban planning at that time.