English abbreviations from nss to nstc
- NSS (National Service Scheme)
- NSSA (National Sportscasters Sportswriters Association)
- NSSC (Neutral Sulfite Semi-Chemical)
- NSSCC (North Suburban Sports Car Club)
- NSSDC ((organization) National Space Science Data Center)
- NSSDR (Navy Sea Service Deployment Ribbon (U.S. Military))
- NSSE (National Special Security Event)
- NSSEA (National School Supply and Equipment Association)
- NSSF (National Shooting Sports Foundation)
- NSSFC (National Severe Storms Forecast Center)
- NSSHLA (National Student Speech Hearing and Language Association)
- NSSMS (NATO Sea Sparrow Missile System)
- NSSN (NAPMA School Support Network)
- NSST (Naval Space Support Team)
- NSSTC (National Space Science and Technology Center)
- NST ((UK) Nimrod Software Team)
- NSTA (National Science Teachers Association)
- NSTAC (National Security Telecommunications Advisory Committee)
- NSTC (Naval Service Training Command)