Patriots Square Park, Urban park in downtown Phoenix, United States.

Patriots Square Park was a 2.5-acre (1-hectare) urban park in downtown Phoenix, Arizona, containing open space, an outdoor performing arts stage and food concessions. It also served as the decorative cover for a public parking structure beneath it, which remains in use. Large portions were demolished in spring 2009 for the CityScape office and retail project.

Patriots Square Park was built in 1976 and named for the fighters of the American Revolutionary War. Alexander and Associates redesigned it in 1988, adding the underground parking structure. In 2006 the Phoenix city council approved RED Development's expanded CityScape plan covering the park; after residents objected and plans were redrawn, large portions were demolished in spring 2009 and the redeveloped park reopened on November 4, 2010.

The park hosted community celebrations including the Arizona Asian Festival and Cinco de Mayo festivities, and it is listed among the Phoenix Points of Pride. After redevelopment it officially reopened on November 4, 2010, with a free two-day concert headlined by Macy Gray and Third Eye Blind.

The park no longer exists as an open green: most of it was demolished in spring 2009 for the CityScape project, and the space reopened on November 4, 2010 as a plaza within that development. The underground public parking structure built with the 1988 redesign by Alexander and Associates remains in use beneath the site.

The underground parking garage built with the 1988 redesign by Alexander and Associates survived the CityScape demolition and still operates beneath the rebuilt plaza. The park reopened on November 4, 2010, with a free two-day concert headlined by Macy Gray and Third Eye Blind.