| Abbreviation | Definition |
|---|---|
| LPRW | Lost Pines Republican Women |
| LPYS | Labour Party Young Socialists |
| LQPP | Loaded Questions Political Party |
| LR | Left Republican |
| LRBF | Latvian Republic Billiard Federation |
| LRS | Lietuvos Respublikos Seimas |
| LSDV | League of Social Democrats of Vojvodina |
| LSG | Local Self Government |
| LSHG | London Socialist Historians Group |
| LTTE | Liberation Tigers of Tamil Eelam |
| LUCO | Lincoln Understood Confederate Outlook |
| LUCR | Lehigh University College Republicans |
| LURD | Liberians United For Reconciliation And Democracy |
| LWGP | Lake Winnebago Green Party |
| LWV | League of Women Voters |
| LWVA | League of Women Voters of Alameda |
| MACPAC | Mountain Area Citizens Political Action Committee |
| MACU | Movimiento Anticomunista Catolico Unido |
| MAFO | Muslim Americans for Obama |
| MAGA | Make America Great Again |