| One Court Square | |
|---|---|
 Facade of 1 Court Square | |
 | |
| General information | |
| Type | Office |
| Coordinates | 40°44′49.5″N 73°56′38″W / 40.747083°N 73.94389°W |
| Completed | 1989 |
| Height | |
| Roof | 673 ft (205 m) |
| Technical details | |
| Floor count | 50 |
| Floor area | 1,400,000 sq ft (130,000 m2) |
| Design and construction | |
| Architect(s) | Skidmore, Owings, and Merrill |
One Court Square, also known as the Citicorp Building or the Citigroup Building, is a 50-story, 673-foot (205 m) office tower in Long Island City, Queens, across the East River from Manhattan in New York City, United States. It was completed in 1989 and designed by Skidmore, Owings & Merrill for Citigroup. The building was the tallest in Queens from its completion until the topping out of Skyline Tower in 2019, and for many years was the only skyscraper in Long Island City. It is now home to telecommunications firm Altice USA, whose logo adorns the top of the building, among other tenants.