| Acronym | Definition |
|---|
| LMSI➣Latin Mass Society of Ireland |
| LMSI➣Lower Manhattan Security Initiative |
| LMSI➣Launch Manifest Systems Integrator (US Air Force) |
| LMSI➣Local Mobile Station Identity |
| LMSI➣Lockheed Martin Services, Inc. |
| LMSI➣Local Mobile Subscriber Identity |
| LMSI➣Laboratory Management Systems, Inc. |
| LMSI➣Laser Magnetic Storage Incorporated |