- 10 Konigl Porzellan
- 19 Korans
- 2 Korean Peninsula
- 1 Kosovo
- 1 Kownatsky, Harry, 1914-2003
- 3 Krail Street
- 2 Krakovitz, M. & Son (glass warehouse & mirror factory)
- 1 Krauth, Charles P. (Charles Porterfield), 1823-1883
- 1 Krout and Fite Manufacturing Co. (tapes, braids laces)
- 1 Krumbhar's Bleaching Works
- 9 Krupp's guns
- 1 Krupp'sche Gusstahlfabrik (Essen, Germany)
- 3 Kufic
- 1 Kugler's Restaurant.
- 1 Kuhn, Hartman, 1784-1860
- 8 Kulliyat-i Sa'di
- 13 Kulp, David, 1777-1834
- 1 Kulp's Mill
- 1 Kuppinger and Ellis Furniture & Bedding (Firm)
- 1 Kuril'skiye Ostrova, Russia
- 1 Kutztown (Pa.)—History
- 1 Kutztown, Pennsylvania
