Coordinates: 40°42′29.47″N 74°0′28.28″W / 40.7081861°N 74.0078556°W
William Street is a street in the Financial District of Lower Manhattan, New York City. It runs generally southwest to northeast, crossing Wall Street and terminating at Broad Street and Spruce Street, respectively. Between Beaver Street and Broad Street, the street is known as South William Street. Between Beekman Street and Spruce Street, in front of New York Downtown Hospital, William Street is pedestrian-only.
It is one of the oldest streets in Manhattan and can be seen in the 1660 Castello Plan of New Amsterdam. It was originally called King Street, but was later renamed William after Willem Beekman who arrived in New Amsterdam in 1647 as a fellow passenger of Peter Stuyvesant. Beekman got his start as a Dutch West India Company clerk and later served nine terms as mayor of the young port city.
The buildings on South William Street 13-23 were reconstructed in the Dutch revival style by architect C. P. H. Gilbert and later Edward L. Tilton in the early 1900s, evoking New Amsterdam with the use of red brick as building material and the features of stepped gables. The area was declared a historic district in 1996 by the New York City Landmarks Preservation Commission.