| Acronym | Definition |
|---|
| NSSL➣National Severe Storms Laboratory |
| NSSL➣National Seed Storage Laboratory (USDA) |
| NSSL➣Northwest Suburban Soccer League |
| NSSL➣New South Softball League (Birmingham, AL) |
| NSSL➣Nova Scotia Student Loan |
| NSSL➣Nutritional Standards for School Lunches (UK) |