| Abbreviation | Definition |
|---|---|
| LMRS | Latvian Materials Research Society |
| LMRS | Leeds Model Railway Society |
| LMRS | Liverpool Model Railway Society |
| LMS | Lietuvos Mokslinink Sjunga |
| LMS | Lietuvos Mokslininks Sjunga |
| LMS | Lietuvos Mokslininku Sajunga |
| LMS | Lithuanian Scientific Society |
| LMS | London Mathematical Society |
| LMSI | Latin Mass Society of Ireland |
| LMSS | Lake Michigan Singlehanded Society |
| LMSS | Liverpool Medical Student Society |
| LOTS | London Omnibus Traction Society |
| LPA | Lietuvos Politolog Asociacija |
| LPA | Lietuvos Politologs Asociacija |
| LPA | Lietuvos Politologu Asociacija |
| LPA | Lithuanian Political Science Association |
| LPBS | Lander Professional Business Society |
| LPCS | Local Post Collectors Society |
| LPES | Libertatem Per Educationis Society |
| LPLS | Latino Pre Law Society |