Broome County Courthouse is a historic courthouse located at Binghamton in Broome County, New York. It is a massive 2 1/2-story structure, built on a raised foundation, in the form of a Latin Cross and topped with an elegant copper dome. Originally constructed in 1897–1898 in a "T" shape, the south wing was added in 1916–1917 to form the cross. It was designed by noted New York State architect Isaac G. Perry. The courthouse is located within the boundaries of the Court Street Historic District. It was listed on the National Register of Historic Places in 1973.