- 1 Lacy, Harriette Deborah, 1807-1874
- 1 Lacy, Walter, 1809-1898
- 15 Ladders
- 1 Ladies' and Gentlemens' Light Lunch Cafe
- 1 Ladies' Tailoring Department
- 2 Ladles (Utensils)
- 1 Ladner, Louis J. Brewery & Garden
- 1 Lady Washington Hotel
- 1 Lafayette Cemetery
- 1 Lafayette College
- 1 LaFayette Fire Company
- 8 LaFayette Hotel
- 1 Lafayette, Indiana
- 1 Lafferty, John & Bro. Gunners Run Dye Works
- 1 Laflin & Rand Powder Co.
- 1 LaFrance Manufacturing Co.
- 2 Lager Beer Saloon
- 1 Lagomarsino & Cuneo
- 1 Lagrange Cotton Factory
- 1 Laing, Son & Harrar (Firm)
- 1 Laity
- 1 Lake Surprise
- 4 Lake Windermere
- 48 Lakes
- 15 Lakes & ponds
- 1 Lallemand, Georges, ca. 1598-1640
- 4 Lama glama (species)
- 1 Lama guanicoe (species)
- 9 Lamb of God
- 3 Lamb Tavern
- 2 Lamb, Charles, 1775-1834
- 1 Lamb, Mary, 1764-1847
- 1 Lambarene, Gabonese Republic
- 2 Lambert Thomas & Co.
- 4 Lambeth Pottery (London, England)
- 15 Lambs
- 1 Lame duck
- 1 Lamert, Mary
- 3 Lamos (Firm)
- 1 Lampblack