| Acronym | Definition |
|---|
| NSGA | National Sporting Goods Association |
| NSGA | Naval Security Group Activity |
| NSGA | National Senior Games Association |
| NSGA | Non-Dominated Sorting Genetic Algorithm |
| NSGA | Nova Scotia-Gambia Association |
| NSGA | Nova Scotia Golf Association (Canada) |
| NSGA | National Specialty Gift Association (Riverview, FL) |
| NSGA | National Stolen Generations Alliance (Australia) |
| NSGA | National Senior Golf Association |
| NSGA | Nursery Sod Growers Association (Canada) |
| NSGA | Northeastern Student Government Association |
| NSGA | Northern Suburbs Games Association (Melbourne, Australia) |
| NSGA | Naval Support Group Activity |
| NSGA | Northern Star Groove Alliance |
| NSGA | National Sand & Gravel Association |
| NSGA | Nova Scotia Guides' Association |
| NSGA | Nursing Student Government Association |
| NSGA | Newfoundland Salmonid Growers Association |
| NSGA | North Shore Gymnastics Association (Maple Plain, MN) |
| NSGA | Navy Security Group Activity |
| NSGA | Nebraska Senior Golf Association |
| NSGA | National Student Government Association |
| NSGA | National Space Grant Alliance, Inc. (Omaha, NE) |
| NSGA | Nashville Singles Golf Association (Nashville, TN) |
| NSGA | Natural Sciences in GET and ABET (South Africa) |
| NSGA | Negeri Sembilan Golf Association |
| NSGA | Naturopathic Student Government Association |
| NSGA | Northwestern Student Government Association |
| NSGA | National Soybean Growers' Association |