Square of Contracts or Contract Square (Ukrainian: Контрактова площа, translit.: Kontraktova ploshcha) is a square in the historic Podil neighborhood of Kyiv, the capital of Ukraine. The square is an important economic, cultural, and transport center of the Podil, containing numerous architectural and historical monuments.

Contract Square is known since the Kyivan Rus' times as an important part of the Podil merchant neighborhood.^[1] The square lies in between the Andriyivskyy Descent, Sahaidachny, Pokrivska, Florivska, Prytisko-Mykilska, Kostiantynivska, Mezhyhirska, Spaska, Skovorody and Ilynska streets.^[1][2]

The construction of the Contracts House, a permanent trading center where contracts were signed, at the end of the 18th century gave the square its current name.^[1][2] During 1748-1749, the Fountain of Samson was built to repair the water distribution system of the area^[3] to a design by Ukrainian architect Ivan Hryhorovych-Barskyi.^[2] The compound of the National University of Kyiv-Mohyla Academy, one of Ukraine's leading universities dating back to 16th century,^[4] adjoins the square.^[1]

In the 1970s, archaeological works conducted by the Institute of Archaeology of the Ukrainian SSR were done on the square, as well as reconstructions of the square's main constructions.

The square was renamed several times during its history: in 1869-1919 the square was named Alexander Square in honour of the Russian emperor Alexander II; in 1919-1944 it was named Red Square, dedicated to Communism; between 1945 and the 1950s, it was renamed back to Contracts, although Red continued to be widely used among elder people; in 1990, the original name was re-established.^[2]

Today, the Contracts Square is an important center of the Podil neighborhood, and also a recreational, cultural and transportation point of the city.

The square is often used for various outdoor public festivities, including music concerts and fairs. The Petro Sahaidachnyi Street which leads to the square is limited to pedestrians on weekends.