SUNY System Administration Building

SUNY Plaza, or the H. Carl McCall SUNY Building, formerly the Delaware & Hudson Railroad Company Building, is a public office building located at 353 Broadway at the intersection with State Street in downtown Albany, New York, United States. Locally the building is sometimes referred to as "The Castle" or "D&H Plaza"; prior to the construction of the nearby Empire State Plaza it was simply "The Plaza". The central tower of the building is thirteen stories high and is capped by an 8-foot-tall working weathervane that is a replica of Henry Hudson's Half Moon.

The State University of New York system is centrally administered from the building. The southern tower's four top floors were once the official residence of the Chancellor of SUNY.