Norfolk Southern Railway, a major Class I railroad in the United States, owned by the Norfolk Southern Corporation
Norfolk Southern Railway (1942–1982), the final name of a railroad running in Virginia and North Carolina before its acquisition by the Southern Railway in 1974
Government and politicsedit
Nasjonal Samling, a 1930s Norwegian national socialist political party
NeXTSTEP, an object-oriented, multitasking operating system by NeXT, as well as a prefix for certain system-provided classes in the operating system, such as "NSString"
ns (simulator) (or "ns-2"), an open source network simulator
New Style (as "N.S." in opposition to Old Style as "O.S."), indicating either a date in the Julian Calendar with the start of year adjusted to 1 January, or a date in the Gregorian calendar