| Abbreviation | Definition |
|---|---|
| LPLS | Leeds Philosophical and Literary Society |
| LPPS | Lighthouse Park Preservation Society |
| LPRS | Lafayette Paranormal Research Society |
| LPRS | Lancashire Parish Register Society |
| LPS | Live Poets Society |
| LRCS | League of Red Cross Societies |
| LRCS | Lincoln Red Cattle Society |
| LROS | Leicestershire Rutland Ornithological Society |
| LRPS | Licentiateship of the Royal Photographic Society |
| LRTS | Lancaster Radio Transmitting Society |
| LRUS | London River Users Society |
| LS | Leaders of Society |
| LS | Lute Society |
| LSA | Law and Society Association |
| LSA | Linguistic Society of America |
| LSA | Lute Society of America |
| LSARS | Life Saving Awards Research Society |
| LSBC | Law Society of British Columbia |
| LSCS | La Salle Computer Society |
| LSCS | Lake Sumter Computer Society |