NISL
| Acronym | Definition |
|---|---|
| NISL | National Institute for School Leadership |
| NISL | Northern Illinois Soccer League |
| NISL | Northern Ireland Sign Language (UK) |
| NISL | North Island Soccer League (New Zealand) |
| NISL | Network and Internetworking Services Ltd. (Cumbria, England, UK) |
| NISL | Norwegian Information Security Laboratory (Gjovik University College; Gjovik, Norway) |