Washington Square Park is one of the best-known of New York City's 1,900 public parks. At 9.75 acres, it is a landmark in the Manhattan neighbourhood of Greenwich Village, as well as a meeting place and centre for cultural activity. It is operated by the New York City Department of Parks and Recreation.

The Park is an open space, dominated by Washington Arch (1892), with a tradition of celebrating nonconformity. The Park's fountain area has long been one of the city's popular spots for residents and tourists. Most of the buildings surrounding the park now belong to New York University, but many have at one time served as homes and studios for artists. Some of the buildings have been built by NYU, others have been converted from their former uses into academic and residential buildings. Located at the foot of Fifth Avenue, the park is bordered by Washington Square North (Waverly Place east and west of the park), Washington Square East (University Place north of the park), Washington Square South (West 4th Street east and west of the park), and Washington Square West (MacDougal Street north and south of the park).

While the Park contains many flower beds and trees, little of the park is used for plantings due to the paving. The two prominent features are Washington's Arch and a large fountain. It includes children's play areas, trees and gardens, paths to stroll on, a chess and scrabble playing area, park benches, picnic tables, commemorative statuary and two dog runs. Those commemorated by statues and monuments include George Washington; Italian patriot and soldier Giuseppe Garibaldi, commander of the insurrectionist forces in Italy’s struggle for unification, and one to Alexander Lyman Holley, a talented engineer who helped start the American steel industry after the invention of the Bessemer process for mass-producing steel.

Films that feature Washington Square Park include: