Kings County Savings Bank is a New York City Landmarks Preservation Commission-designated building in the Williamsburg, Brooklyn section of New York City. It is an example of French Second Empire-style architecture. Construction of the building began in 1860, to designs of William H. Wilcox of Brooklyn, in partnership with prominent New York architect Gamaliel King, working as King & Wilcox. The structure was continuously occupied by banks until the 1990s.