Encyclopedias, Almanacs, Transcripts, and Maps
- Klokochovo
- Kloppenburg, Boaventura (1919-)
- Kluski, Franek (1874-?)
- Kneale, Martha Hurst (1909-)
- Knife Wounds
- Knight, Gareth (1930-)
- Knight, JZ (1946-)
- Knob-Scaled Lizards: Xenosauridae
- Knockers
- Knodt, William Charles (1936-)
- Knorr von Rosenroth, Christian (1636-1689)
- Knots and Ligatures
- Knowles, Elsie A(nna) G(race) (1908-)
- Knowles, Frederick W(ilfred) (1911-)
- Ko Yu
- Koala, Wombats, Possums, Wallabies, and Kangaroos: Diprotodontia
- Koala: Phascolarctidae
- Koalas
- Koalas
- Kobolds