SDNY meaning in Governmental ?

The United States District Court for the Southern District of New York (in case citations, S.D.N.Y.) is a federal district court whose geographic jurisdiction encompasses eight counties of New York State. Two of these are in New York City: New York (Manhattan) and Bronx; six are in Downstate: Westchester, Putnam, Rockland, Orange, Dutchess, and Sullivan. Appeals from the Southern District of New York are taken to the United States Court of Appeals for the Second Circuit (except for patent claims and claims against the U.S. government under the Tucker Act, which are appealed to the Federal Circuit).

Because it covers Manhattan, the Southern District of New York has long been one of the most active and influential federal district courts in the United States. Because of its age and influence, it is sometimes colloquially called the "Mother Court" or the "Sovereign District of New York." The district has had several prominent judges on its bench, including Learned Hand, Michael Mukasey, and Sonia Sotomayor, and many of the U.S. Attorneys for the district have been prominent American legal and political figures, such as Elihu Root, Henry L. Stimson, Robert Morgenthau, Rudy Giuliani, James Comey, Michael J. Garcia, and Preet Bharara.