| Acronym | Definition |
|---|
| LAB | Laboratory |
| LAB | Labour Party (New Zealand political party) |
| LAB | Like a Boss |
| LAB | Latrobe (Amtrak station code; Latrobe, PA) |
| LAB | Labour Party (UK political party) |
| LAB | Lactic Acid Bacteria |
| LAB | Labrador |
| LAB | Lead-Acid Battery |
| LAB | Latin American Business (Texas) |
| LAB | Live Aus Berlin (Rammstein DVD) |
| LAB | Live and Breathe (various locations) |
| LAB | Legal Aid Board |
| LAB | Lloyd Aéreo Boliviano (Bolivian airline) |
| LAB | League of American Bicyclists |
| LAB | Learning about Business (Painesville, OH) |
| LAB | Language Acquisition and Bilingualism (various schools) |
| LAB | Life Application Bible |
| LAB | Library Advisory Board |
| LAB | Linear Alkyl Benzene |
| LAB | Law Alumni Board (various schools) |
| LAB | Local Action for Biodiversity (various organizations) |
| LAB | Legal Advice Bureau (various locations) |
| LAB | Link Assignment Block |
| LAB | Leadership Advisory Board |
| LAB | Licensed Associate Broker |
| LAB | Little Assawoman Bay (Delaware) |
| LAB | Legislatively Adopted Budget (Oregon) |
| LAB | Logic Array Block(s) |
| LAB | Landscape Architect Board (various locations) |
| LAB | Language and Business |
| LAB | Local Administration Bureau (various locations) |
| LAB | Land Air Battle |
| LAB | Louisiana Association for the Blind |
| LAB | Louisiana Alliance for Biotechnology |
| LAB | Legislative Approved Budget (Oregon) |
| LAB | Legal Advisory Board for the Information Market (EU) |
| LAB | Light Armor Battalion |
| LAB | Local Area Broadcast |
| LAB | Low-Angle Bombing |
| LAB | Logistics Assault Base |
| LAB | Lightness-A-B (color model) |
| LAB | Large Array Block |
| LAB | Leave Authorization Balance |
| LAB | Low Altitude Bombardment |
| LAB | Light Assault Bridge |