| LMSI | Laser Magnetic Storage International
| Others |
| LMSI | Latin Mass Society of Ireland
| Others |
| LMSI | Le Mans Sarthe Investissements
| Others |
| LMSI | Les mots sont importants
| Others |
| LMSI | Library Management Skills Institute
| Others |
| LMSI | Lifeword Montessori School Inc
| Others |
| LMSI | Local Mobile Station Identity
| Others |
| LMSI | Local Mobile Subscriber Identity
| Others |
| LMSI | Lockheed Martin Services Inc
| Others |
| LMSI | Lockheed Martin Systems Integration
| Others |
| LMSI | Lower Manhattan Security Initiative
| Others |
| LMSI | Lutheran Mission of Salvation India
| Others |