People beginning with K
- Krabbe, Knud Haraldsen
- Kraepelin, Emil Wilhelm Magnus Georg
- Kramer, Family
- Kraske, Paul
- Kraupa, Ernst
- Krause, Arlington Colton
- Krause, Wilhelm
- Krause, Karl Friedrich Theodor
- Krebs, Sir Hans Adolf
- Krefting, Rudolf Waldemar Rømeling
- Kretschmer, Ernst
- Kreutzer, Guillermo Oscar Alejandro
- Krida, Arthur
- Kristeller, Samuel
- Krogius, Frans Ali
- Krompecher, Ödön
- Krüger, Karl-Heinz
- Krukenberg, Friedrich Ernst
- Kruse, Walther
- Kufs, Hugo Friedrich
- Kugelberg, Erik Klas Henrik
- Kugler, Heinz W.
- Kümmell, Hermann
- Kunkel, Henry George
- Kuroki, Yoshikazu