NSWC

NSWC may refer to:


 * National Security and War Course, at the National Defence University, Pakistan
 * Neighbourhood and Worker's Service Centre, a pro-democracy political group in Hong Kong

United states military and intelligence community

 * National SIGINT Watch Center, original name of the United States National Security Operations Center
 * Naval Surface Warfare Center, part of United States Naval Sea Systems Command operations
 * United States Naval Special Warfare Command, the Naval component of United States Special Operations Command