| Acronym | Definition |
|---|
| ILSI➣International Life Sciences Institute |
| ILSI➣Israel Life Science Industry |
| ILSI➣Inflation-Linked Securities Index |
| ILSI➣Instructional Leadership and Supervision Initiative (Ministry of Education; Yemen) |
| ILSI➣Incorporated Law Society of Ireland |
| ILSI➣Integrated Logistics Support Instruction |