- 3 Loretto Avenue
- 1 Lorimer, John H.
- 2 Lorimer, William H. & Sons (Dyers)
- 1 Los Altos, California
- 1 Los Angeles County, California
- 15 Los Angeles, California
- 1 Los Salas, Mexico
- 8 Lots (land)
- 4 Louchheim, Stuart F. (Stuart Fleisher), 1892-1971
- 1 Loudon, J.C. (John Claudius)
- 1 Loudoun Park
- 1 Louis IX, King of France, 1214-1270
- 8 Louis Leon Marchand (Firm)
- 1 Louis Philippe, King of the French, 1773-1850
- 1 Louis Reigdoll Rig Co. Lager Beer (Firm)
- 1 Louis, Saint, Bishop of Toulouse, 1274-1297
- 28 Louisiana
- 2 Louisville Steam Lith. Co.
- 2 Louisville, Kentucky
- 1 Lounges (sitting rooms)
- 1 Lovatt, George Ignatius, Sr. (1872-1958), Architect
- 17 Love
- 1 Love blinded (Sculpture)
- 5 Love blinds (Sculpture)
- 4 Lovegrove & Co.
- 2 Lovejoy, Elijah P. (Elijah Parish), 1802-1837
- 1 Lovelace (Firm : Des Moines, Iowa)
- 1 Lovelace, Ada King, Countess of, 1815-1852
- 1 Lovering, Joseph S.
- 2 Love's First Whispers (Sculpture)
- 5 Love's messenger (Sculpture)
- 5 Love's net (Sculpture)
- 4 Low income housing
- 1 Lowe, James, d 1865
- 1 Lowell Bleachery
- 2 Lower Chichester Township
- 2 Lower Dublin Academy
- 3 Lower Dublin Hotel
- 30 Lower Merion Township, Pennsylvania
- 11 Low-rise buildings
