| Name and firstname(s) | Name Toernooibase | Club or Country |
 Kovalevskij, Konstantin | Konstantin Kovalevskij | Russia |
 Kovalski, Ales | Ales Kovalski | Czech Republic |
 Kovrizjkin, Anatoli Ivanovitsj | Anatoli Ivanovitsj Kovrizjkin | |
 Kowal, Anna | Anna Kowal | Poland |
| Kowalczyk, Jan | Jan Kowalczyk | Poland |
| Kowalska, Daria | Daria Kowalska | Poland |
| Kowalska, Justyna | Justyna Kowalska | Poland |
| Kowalski, Kamil | Kamil Kowalski | Poland |
| Kowalski, Norbert | Norbert Kowalski | Poland |
 Kowarski, Jan | Jan Kowarski | Belgium |
 Koyelongo, Koyelongo | Koyelongo Marcel | Congo Democratic Republic |
 Koyfman, Ygal | Ygal Koyfman | Israel |
 Kozachok, Dmytro | Dmytro Kozachok | Ukraine |
| Kozaczynski, Jakub | Jakub Kozaczynski | Poland |
| Kozaczynski, Mateusz | Mateusz Kozaczynski | Poland |
| Kozaczynski, Pawel | Pawel Kozaczynski | Poland |
| Kozak, Anastasiya | Anastasiya Kozak | Ukraine |
| Kozicka, Jagoda | Jagoda Kozicka | Poland |
| Kozik, Leslaw | Leslaw Kozik | Poland |
| Kozin, Maksym | Maksym Kozin | Ukraine |
 Kozjanovsky, Petr Grigorijevitsj | Petr Grigorijevitsj Kozjanovsky | Belarus |
| Kozjemjakin, Vladimir Ivanovitsj | Vladimir Ivanovitsj Kozjemjakin | Belarus |
| Kozlov, Aleksander | Aleksander Kozlov | Russia |
| Kozlov, Evgeni | Evgeni Kozlov | Russia |
| Kozlov, Iwan | Iwan Kozlov (29.08.1920 - 10.08.2003) Add info | |
| Kozlov, Viktor Nikoaljevitsj | Viktor Kozlov | Ukraine |
| Kozlovsky, Maxim | Maxim Kozlovsky | Russia |
| Kozlowski, Edward | Edward Kozlowski | Poland |
| Kozlowski, Jan | Jan Kozlowski | Belgium |
| Kozun, Aleksei | Aleksei Kozun | Ukraine |
 Kpaha, Yves | Yves Kpaha | Ivory Coast |
| Kpidi, Yapo Justin | Yapo Justin Kpidi | Ivory Coast |
| Kradizhenko, Dmitrii | Dmitrii Kradizhenko | Russia |
| Krajevsky, Ivan Francevitsj | Ivan Krajevsky | |
| Krajewski, Andrzej | Andrzej Krajewski | Poland |
 Kramaric, Davorin | Davorin Kramaric | Croatia |
 Krane, Amin | Amin Krane | Germany |
| Krane, Benjamin | Benjamin Krane | Germany |
| Kranzan, Bi Oula Anselme | Bi Oula Anselme Kranzan | Ivory Coast |
 Krapivina, Anna | Anna Krapivina | Latvia |
| Krasinska, Maria | Maria Krasinska | Poland |
| Kraskurs, Martins | Martins Kraskurs | Latvia |
| Krasnapolskaia, Anastasia | Anastasia Krasnapolskaia | Russia |
| Krasnjanski, Michael | Michael Krasnjanski | Ukraine |
 Krasnostein, Alexander | Alexander Krasnostein | USA |
| Krasnova, Anastasiya | Anastasiya Krasnova | Russia |
| Krasnuchin, M. | M. Krasnuchin | Russia |
| Krasutina, Inese | Inese Krasutina | Latvia |
 Kraujalis, Liudas | Liudas Kraujalis | Lithuania |
| Krause, Sylwia | Sylwia Krause | Poland |
| Krautsou, Ilya | Ilya Krautsou | Belarus |
| Krautsou, Ivan | Ivan Krautsou | Belarus |
| Krauzowicz, Wiktoria | Wiktoria Krauzowicz | Poland |
 Kravchenko, A. | A. Kravchenko | Foreign players |
| Kravchenko, Kira | Kira Kravchenko | Ukraine |
| Kravchenko, Tetiana | Tetiana Kravchenko | Ukraine |
| Kravchenko, Vladimir | Vladimir Kravchenko | Belarus |
 Kraveishvili, M. | M. Kraveishvili | USSR |
 Kravietzky, J. | J. Kravietzky | France |
| Kravtsov, Grigory Konstantinovitsj | Grigory Konstantinovitsj Kravtsov | Belarus |
| Kravtsov, Vadim Grigorijevitsj | Vadim Grigorijevitsj Kravtsov | Belarus |
| Krawczyk, Sylwia | Sylwia Krawczyk | Poland |
| Krebe, Arvo | Arvo Krebe | Latvia |
| Kreger, Joop | Joop Kreger | Belgium |
| Kreice, Samanta | Samanta Kreice | Latvia |
| Kreidlin, Alex | Alex Kreidlin | Israel |
| Kreitale, Laine | Laine Kreitale | Latvia |
| Kreits, Fricis | Fricis Kreits | Latvia |
| Krekels, Michel | Michel Krekels | Belgium |
| Krela, Wiktor | Wiktor Krela | Poland |
| Kremar, B. | B. Kremar | Belgium |
| Kremers, NN. | NN. Kremers | Belgium |
| Krepsky, Pavel | Pavel Krepsky | Belarus |
| Kreutz, Germaine | Germaine Kreutz | Belgium |
| Kreydt, NN. | NN. Kreydt | Belgium |
| Krief, Julien | Julien Krief | France |
| Krigers, E. | E. Krigers | Latvia |
 Kriisa, Marta | Marta Kriisa | Estonia |
| Krikstaponis, Juliijonas | Jonas Krikstaponis | Lithuania |
| Krilovs, Harijs | Harijs Krilovs | Latvia |
| Kripans, Peteris | Peteris Kripans | Latvia |
| Kriskevitch, Maria | Maria Kriskevitch | Russia |
| Krista, Vaclav | Vaclav Krista | Czech Republic |
| Kristek, Ivo | Ivo Kristek | Czech Republic |
| Kristoffels, Katrien | Katrien Kristoffels | Belgium |
| Kristoffes, Sara | Sara Kristoffels | Belgium |
 Kristopher, Sammy | Sammy Kristopher | Trinidad and Tobago |
| Kriuchkov, Evgenii | Evgenii Kriuchkov | Russia |
| Krivoshapkin, Petr | Petr Krivoshapkin | Russia |
| Krizoho, Judicaul | Judicaul Krizoho | Ivory Coast |
| Krjutsjkov, Valery G. | Valery G. Krjutsjkov | Ukraine |
| Kroepkin, Maxim | Maxim Kroepkin | Belarus |
| Kroesen, J. | J. Kroesen | Belgium |
| Krolak, Bartlomiej | Bartlomiej Krolak | Poland |
| Kroll, Nicolaas | Nicolaas Kroll | Belgium |
| Krom, Eugen | Eugen Krom | Germany |
| Kronlaks, Olafs | Olafs Kronlaks | Latvia |
| Kroon, I. | I. Kroon | USSR |
| Kroon, Oie | Oie Kroon | Estonia |
| Kroshka, Hanna | Hanna Kroshka | Belarus |
