ISBL
| Acronym | Definition |
|---|---|
| ISBL | Institutions Sans But Lucratif (French: Not-For-Profit Institutions) |
| ISBL | Inside Battery Limits |
| ISBL | International Symposium on Ball Lightning |
| ISBL | Information System Base Language (programming) |
| ISBL | Institute for Strategic Brand Leadership (KCM Holdings; Texas) |
| ISBL | International Society of Business Leadership (Karachi, Pakistan) |