| Acronym | Definition |
|---|
| ILRS➣International Laser Ranging Service (NASA) |
| ILRS➣Indian Long Range Squadron (British Indian Army) |
| ILRS➣International League of Religious Socialists |
| ILRS➣International Leibniz Research School (Germany) |
| ILRS➣International List of Reportable Substances (materials) |
| ILRS➣Immigration Lawyer Referral Service (American Immigrant Lawyers Association) |
| ILRS➣Ink Level Restore System (printing) |
| ILRS➣IL-4 (Interleukin-4) Response Sequence (molecular biology) |