- 2 Loganian Library
- 3 Logan's Cotton Factory
- 1 Logan's Nursery
- 1 Loggers
- 6 Logic
- 1 Logos
- 3 Logs
- 1 Logwood (colorant)
- 3 Lombard & South Streets Railway
- 15 Lombard Street
- 1 Lombard Street
- 1 Lombardi, Italy
- 1 Lombart (Firm)
- 1 London & Blackwall Railway
- 1 London Bridge
- 4 London Bridge Station, England (railroad station)
- 10 London Coffee House (Philadelphia, Pa.)
- 43 London, England
- 1 London, Ontario
- 1 Lonergan Building
- 3 Long Beach, California
- 3 Long Island, New York
- 1 Long Lane Inn
- 1 Long, Huey Pierce, Jr., 1893–1935
- 7 Longcase clocks
- 5 Longfellow, Henry Wadsworth, 1807-1882
- 1 Longinus, 1st cent.
- 2 Longman, Thomas, 1804-1879
- 5 Longshore Street
- 12 Longshoremen
- 1 Longstreet, James, 1821-1904
- 1 Lonsdale, Thomas Preston (1855-1900), Architect
- 2 Looms
- 4 Looney, Robert F.
- 1 Loose-leaf bindings
- 1 Lopez & Vaquez
- 1 Lord Aukland
- 1 Lord Leiscester's Hospital
- 1 Lord Mayor's Day
- 1 Lorenz Bros.
