LB
- .lb
- Binary logarithm
- L Brands
- LB (car ferries)
- LB.ua
- Labrador
- Lane Bryant
- Lattice Boltzmann methods
- Laurier Brantford
- Lebanon
- Left back
- Leg bye
- Letterboxing (filming)
- Liberty BASIC
- Linebacker
- Ljubljanska banka
- Lloyd Aéreo Boliviano
- Long Beach, California
- Los Baños, Laguna
- Luxembourgish language
- Lysogeny broth
- Movement for Unification
- Pound (mass)
- Pound-force
- Upper and lower bounds