| Abbreviation | Definition |
|---|---|
| LAS | Latvijas Arhitektu Savieniba |
| LAS | Latvijas Zinat nu Akademija |
| LAS | LeTourneau Aviation Society |
| LAS | Library Association of Singapore |
| LATOS | Los Angeles Theatre Organ Society |
| LATS | Latin American Thyroid Society |
| LATS | Sociedad Latinoamericana de Tiroides |
| LAWSA | Lancaster and Westmorland Society of Architects |
| LBD | Lietuvos Bibliotekinink Draugija |
| LBD | Lietuvos Bibliotekininks Draugija |
| LBD | Lietuvos Bibliotekininku Draugija |
| LBD | Lithuanian Librarians' Association |
| LBFS | Laser Blast Film Society |
| LBPS | Lowland and Border Pipers Society |
| LBPS | Lowland and Border Piping Society |
| LCA | Law Council of Australia |
| LCAS | Lake County Astronomical Society |
| LCAS | Lorain County Aquarium Society's |
| LCBS | Lethbridge Community Band Society |
| LCBS | Linn County Blues Society |