Public School 71K is a historic school building located in Williamsburgh, Brooklyn, New York, New York. It was built in 1888-1889 to designs by James W. Naughton. It is a symmetrical three story, brick building with stone trim in the Second Empire style. It features a tall central tower with a high mansard roof and original iron cresting.It was listed on the National Register of Historic Places in 1982.