| Abbreviation | Definition |
|---|---|
| KTA | Knowledge Transfer Alliance |
| KUPA | Kansas Unity and Pride Alliance |
| KWA | Kansas Wheat Alliance |
| KWA | Kentucky Waterways Alliance |
| LA | Lyrical Alliance |
| LA | The Launchie Alliance |
| LAA | Learning Assistant Alliance |
| LAACC | Latin American Alliance of Christian Churches |
| LACA | Libraries and Archives Copyright Alliance |
| LAD | Louisiana Alliance for Dance |
| LAEC | Loyalty Alliance Enterprise Corp |
| LAIA | Lake Area Industry Alliance |
| LAIPA | Los Angeles Indigenous Peoples' Alliance (California) |
| LAMI | Leadership Alliance Mellon Initiative |
| LAMT | Labor Alliance Managed Trust |
| LANA | Laotian American National Alliance |
| LAORA | Life Alliance Organ Recovery Agency (formerly the University of Miami Organ Procurement Organization; University of Miami School of Medicine; Florida) |
| LAPC | Librarians Alliance for Parents and Children |
| LASA | Living Access Support Alliance |
| LASA | Living and Access and Support and Alliance |