OSIL
| Acronym | Definition |
|---|---|
| OSIL | Operation Save Innocent Lives (mine action organization; Sudan) |
| OSIL | Ocean Scientific International, Ltd. (UK) |
| OSIL | Office of Student Involvement and Leadership (various universities) |
| OSIL | Offshore Systems International Ltd. (software; Vancouver, British Columbia, Canada) |
| OSIL | Orissa Sponge Iron Ltd. (India) |