Encyclopedias, Almanacs, Transcripts, and Maps
- Knowledge and Vagueness
- Knowledge Argument
- Knowledge in Indian Philosophy
- Knowledge, A Priori
- Knowledge, The Priority of
- Knox, John ca. 1514–1572 Scottish Protestant Preacher
- Knox-Castrillo Treaty (1911)
- Knutzen, Martin (1713–1751)
- Koellreutter, Hans Joachim (1915–2005)
- Koffka, Kurt (1886–1941)
- Kogi
- Kohistani
- Kohl, Herbert R.
- Kohler, Foy David
- Köhler, Wolfgang (1887–1967)
- Koiari
- Koli
- Kolis
- Kolisuch'ǒk
- Kolomischiina