| Acronym | Definition |
|---|
| NSCA | National Strength & Conditioning Association |
| NSCA | National Systems Contractors Association |
| NSCA | National Center for Supercomputing Application |
| NSCA | National Street Car Association |
| NSCA | National Sporting Clays Association |
| NSCA | National Safety Council of Australia |
| NSCA | National Society for Clean Air and Environmental Protection (UK) |
| NSCA | Nebraska Sprint Car Association |
| NSCA | Nova Scotia Court of Appeal (Canada) |
| NSCA | Nuclear Safety and Control Act (Canada) |
| NSCA | Natural Science Collections Alliance |
| NSCA | Nebraska State Chess Association |
| NSCA | Nova Scotia Curling Association |
| NSCA | Nagoya Sister Cities Association (Aichi, Japan) |
| NSCA | Nova Scotia Centre on Aging (Canada) |
| NSCA | National Subacute Care Association |
| NSCA | National Sound Contractors Association |
| NSCA | National Shiba Club of America |
| NSCA | Norris Square Civic Association |
| NSCA | National School Camp Association (1915-1928) |
| NSCA | Nova Scotia Chess Association |
| NSCA | Non-Symmetric Correspondence Analysis |
| NSCA | National Subcontractors Association |
| NSCA | Naval Ship Classification Association |
| NSCA | Northern Society for Creative Anachronism |
| NSCA | National Scrip Collectors Association |
| NSCA | Negros State College of Agriculture (Philippines) |
| NSCA | Net Sales Classified Advertising |
| NSCA | Norfolk Sister City Association |
| NSCA | New Serial Channel Adapter |
| NSCA | Newfoundland Stock Car Association |
| NSCA | Nebraska School Counselor Academy |
| NSCA | North Shore Chinese Association |
| NSCA | Nassau/Suffolk Cheerleading Association |
| NSCA | National Space Commission Act of 2003 |
| NSCA | National Sound Corporation of America |
| NSCA | Nebraska School Counselor's Association |
| NSCA | National Station Car Association |
| NSCA | National Saddle Clubs Association |
| NSCA | Non Scoring Credit Approval (UK) |
| NSCA | New Scandia |