Encyclopedias, Almanacs, Transcripts, and Maps
- Kaufman, Irving Robert
- Kaufmann, Walter Arnold (1921–1980)
- Kautsky, Karl (1854–1939)
- Kavelin, Konstantin Dmitrievich (1818–1885)
- Kawaiisu
- Kayapos
- Kaye, Sylvia Fine
- Kazakh Chinese
- Kearny, Stephen W. (1794–1848)
- Keban Dam
- Kédang
- Keel, (Clifford) Howard
- Keeler, Ruby
- Keeler, William Henry
- Keeshan, Robert James
- Keith, Minor Cooper (1848–1929)
- Keiyo
- Kelabit
- Kelheim
- Kelly, Eugene Curran (“Gene”)