Lab
- Alkylbenzene sulfonates
- L.A.B.
- LAB (band)
- LAB Records
- Lab color space
- Laboratory
- Labour Party (disambiguation)
- Labrador Retriever
- Labs (disambiguation)
- Laburnum railway station
- Lactic acid bacteria
- Langile Abertzaleen Batzordeak
- League of American Bicyclists
- Linear alkylbenzene
- Linhas Aéreas Brasileiras
- Lithosphere-Asthenosphere boundary
- Lloyd Aéreo Boliviano
- Lockerz
- Los Angeles Baptist High School
- Lyman-alpha blob
- Láb
- Physical fitness
- The Lab (disambiguation)