NSL

NSL may refer to:

==Government and politics== National Security League, an American preparedness organization National Socialist League (United Kingdom), a British pre–World War II Nazi group National Socialist League (United States), a gay neo-Nazi party in the U.S., 1974–1980s National Socialist Legion, an American neo-Nazi group National security letter, an administrative subpoena issued by the U.S. government National Security Act (South Korea) Hong Kong national security law