Applied and Social Sciences magazines
- Klein, Lawrence
- Knapp, Georg Friedrich
- Knesset, The
- Knies, Karl
- Knight, Frank H.
- Knowledge Society
- Knowledge, Diffusion of
- Kondratieff, N. D.
- Koppers, Wilhelm
- Korösy, József
- Kretschmer, Ernst
- Kroeber, Alfred L.
- Kropotkin, P’etr
- Kshatriyas
- Kuhn, Thomas
- Kulischer, Eugene
- Külpe Oswald
- Kuznets Hypothesis
- Labeling Theory
- Labor Force