| Acronym | Definition |
|---|
| NSLI | National Security Language Initiative |
| NSLI | National Service Life Insurance |
| NSLI | National Sports Law Institute (Marquette University) |
| NSLI | National Service Leadership Institute |
| NSLI | Network Security Laboratories, Inc. (Bethesda, MD) |
| NSLI | Nova Scotia Learning Interchange (Canada) |
| NSLI | National Site Licensing Initiative (UK) |
| NSLI | Non-Seniority List Instructor |
| NSLI | Non-Street Lamp Interference |
| NSLI | Number of Slices |
