| Acronym | Definition |
|---|
| NCSA➣National Center for Supercomputing Applications |
| NCSA➣Next College Student Athlete (Chicago, IL) |
| NCSA➣National Collegiate Scouting Association (Chicago, Illinois) |
| NCSA➣National Cyber Security Alliance |
| NCSA➣Network Certified Solution Architect |
| NCSA➣National Center for Statistics and Analysis |
| NCSA➣North Carolina School of the Arts |
| NCSA➣National Computer Security Association |
| NCSA➣National Computational Science Alliance |
| NCSA➣National Cued Speech Association |
| NCSA➣North Central Sociological Association |
| NCSA➣Nebraska Council of School Administrators |
| NCSA➣National Club Swimming Association |
| NCSA➣Non-Commercial Sustaining Announcement |
| NCSA➣NATO CIS Services Agency |
| NCSA➣National Comorbidity Survey Adolescent Supplement |
| NCSA➣Netscreen Certified Security Associate |
| NCSA➣North Carolina Society of Anesthesiologists |
| NCSA➣Northern California Soaring Association |
| NCSA➣North Coast South America (trade route) |
| NCSA➣National Cadet Special Activity |
| NCSA➣National Crushed Stone Association |
| NCSA➣North Carolina Soaring Association (aviation) |
| NCSA➣North Carolina Society of Accountants (Conover, North Carolina) |
| NCSA➣National Customer Service Association (Normal, IL) |
| NCSA➣Nose Creek Swim Association (Calgary, Alberta, Canada) |
| NCSA➣Network Current Systems Assessment (Sprint) |
| NCSA➣Naval C4I Systems Architecture |
| NCSA➣Noncommercial Spot Announcement |
| NCSA➣National Computer Science Association (firewall certification) |
| NCSA➣Nossa Senhora Conceição Aparecida |
| NCSA➣National Coalition of Student Activists (UK) |