English abbreviations from nst to nswccss
- NST ((UK) Nimrod Software Team)
- NSTA (National Science Teachers Association)
- NSTAC (National Security Telecommunications Advisory Committee)
- NSTC (Naval Service Training Command)
- NSTD (Non-System Training Devices)
- NSTDR (Non-System Training Device Requirement)
- NSTE (Non-Student Temporary Employee)
- NSTF (Nova Scotia Trails Federation)
- NSTISS (National Security Telecommunications and Information Systems Security)
- NSTISSAM (National Security Telecommunications and Information Systems Security Advisory Memorandum)
- NSTL (National Software Testing Laboratories)
- NSTP (National Service Training Program)
- NSTS (National Secure Telephone System)
- NSTUD (National System Tactical User Device)
- NSU (National Support Unit)
- NSUI (National Student Union of India)
- NSUR (Non-Hardened Small Unit Radio)
- NSV (Nikitin-Sokolov-Volkov heavy machine gun (Russian НСВ Никитина-Соколова-Волкова) ru:ПулеметНСВ-12,7 "Утес")
- NSW (New South Wales (postal symbol))
- NSWC (Naval Surface Warfare Center)
- NSWCCSS (Naval Surface Warfare Center Coastal Systems Station)