| 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) |