NSL

NSL may refer to:National Soccer League of Australia (now defunct)National Soccer League (indoor), a proposed US indoor soccer leagueNational Security League (1914-1942), an American preparedness organization National Security Letter, a demand letter by the FBI to turn over information on individualsNational Security Act (South Korea) of South KoreaNational Socialist League, a British Nazi groupNeedham-Schroeder-Lowe, an authentication protocolNicaraguan Sign Language, a unique new signed language developed by deaf children in NicaraguaNorthwestern Shiprepairers Limited, a British shipbuilding and repair company trading as NSLNaša Sinalko Liga, A Serbian basketball league known as the Sinalco LeagueNational Slayer League on Halo 2National speed limit, a British speed limitNottinghamshire Senior League, a British amateur football (soccer) league
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