| 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 |