- J. Pigot & Co.3
- Jefferys, Thomas3
- Jentzsch, Alfred, 1850-19253
- Johnston, Alexander Keith, 1804-18713
- Julius Bien & Co.3
- Keere, Pieter van den, 1571-approximately 16463
- Kenyon Company3
- Keulen, Gerard van3
- Klooz, C. J.3
- Kneass & Delleker3
- L'Enfant, Pierre Charles, 1754-18253
- Lagrive, Jean de, 1689-17573
- Lamb, George3
- Lapham, Increase Allen, 1811-18753
- Le Rouge, Georges-Louis3
- Leclerc, Jean, 1560-16213
- Leclerc, Jean, 1560-1621, cartographer3
- Leith, C. K. (Charles Kenneth), 1875-19563
- Lewis, Samuel, 1753 or 1754-18223
- Lizars, Daniel, 1760-18123