| Abbreviation | Definition |
|---|---|
| LSSEM | Legal Services of South- Eastern Michigan |
| LSSM | Lutheran Social Services of Michigan |
| LT | Life Teen |
| LTA | Land Trust Alliance |
| LTAB | Louisville Technology Acronym Bee |
| LTC | Little Traverse Conservancy |
| LTCC | Long Term Care Consortium |
| LTDC | Lachen Tourism Development Committee |
| LTET | Lake Tahoe Water Trail |
| LTI | Life Teen, Inc. |
| LTI | Life Teen, Incorporated |
| LTL | Loyal Temperance Legion |
| LTM | Life Time Member |
| LTNC | Land Trust Of Napa County |
| LTV | Long Term Volunteer |
| LTW | Lapeer Team Work |
| LTWI | Lapeer Team Work, Inc. |
| LUFA | Law-abiding Unregistered Firearms Association |
| LULAC | League of United Latin American Citizens |
| LULAC | The League Of United Latin American Citizens |