IILS
| Acronym | Definition |
|---|---|
| IILS | International Institute for Labour Studies (International Labour Organization) |
| IILS | Institute of International Legal Studies (University of the Philippines) |
| IILS | Indian Institute of Language Studies |
| IILS | International Intelligent Logistics Systems (shipping conference) |
| IILS | Image Interpretation Light Station |
| IILS | International Interlibrary Loan Service |