People beginning with K
- Kogoj, Franjo
- Köhler, Alban
- Köhlmeier, Walter
- Kohn, Hans
- Kolodny, Edwin Hillel
- Kolopp, Pierre
- Koltipin, Alexandr Alexeevich
- Konchalovskii, Maxim Petrovich
- König, Franz
- Königsbeck, Maximilian
- Konigsmark, Bruce W.
- Königstein, Hans
- Konovalov, Nikolay Vasiljevich
- Kopits, Eugen
- Koplik, Henry
- Korányi, Friedrich von
- Korányi, Sándor
- Kornzweig, Abraham Leon
- Korotkov, Nikolai Sergeievichj
- Korovnikov, A. F.
- Korsakoff, Sergei Sergeievich
- Koslowski, Kazimierz S.
- Kounis, Nicholas G.
- Koyanagi, Yoshizo
- Kozhevnikov, Alexis Yakovlievich