| Name and firstname(s) | Name Toernooibase | Club or Country |
 Kosobudzka, Ewa | Ewa Kosobudzka | Poland |
| Kosobudzka-Flisikowska, Arleta | Arleta Kosobudzka-Flisikowska | Poland |
| Kosobudzki, Lukasz | Lukasz Kosobudzki | Poland |
| Kosobudzki, Przemyslaw | Przemyslaw Kosobudzki | Poland |
 Kosova, Ema | Ema Kosova | Czech Republic |
 Kossa, Bienvenu | Bienvenu Kossa | Congo Brazzaville |
 Kosse, Daria | Daria Kosse | Russia |
 Koster, Johan | Johan Koster | Netherlands Antilles |
 Koster, P. | P. Koster | Componisten |
 Kostikov, Saveliy | Saveliy Kostikov | Ukraine |
| Kostionow, Iwan | Iwan Kostionow | Russia |
 Kostitsyna, Mariya | Mariya Kostitsyna | Kazachstan |
 Kostona, Jekaterina | Jekaterina Kostõna | Estonia |
| Koszewska, Adrianna | Adrianna Koszewska | Poland |
| Kotelnikov, Illia | Illia Kotelnikov | Ukraine |
| Kotenko, Ninel | Ninel Kotenko | Ukraine |
| Kotenko, Sergey | Sergey Kotenko | Ukraine |
 Kotliar, Naumen | Naumen Kotliar | Israel |
 Kotliar , Y. | Y. Kotliar | Foreign players |
| Kotliarova, Natalja | Natalja Kotliarova | Ukraine |
| Kotys, Adam | Adam Kotys | Poland |
| Kotys, Iwona | Iwona Kotys | Poland |
 Kouadio, Yao Herve | Yao Herve Kouadio | Ivory Coast |
| Kouadio, Angaman | Angaman Kouadio | Ivory Coast |
| Kouadio, Armel Rodolphe | Armel Rodolphe Kouadio | Ivory Coast |
| Kouadio, David | David Kouadio | Ivory Coast |
| Kouadio, Jean-Claude | Kouadio Jean-Claude | Ivory Coast |
| Kouadio, Kouame | Kouadio Kouame | Ivory Coast |
| Kouadio , Kouassi Gildas | Kouassi Gildas Kouadio | Ivory Coast |
| Kouakou, Kouassi Justin | Kouassi Justin Kouakou | Ivory Coast |
| Kouakou, Kouassi Wilfried | Kouakou Kouassi Wilfried | Ivory Coast |
| Kouakou, Patrice | Patrice Kouakou | Ivory Coast |
| Kouakou, Romeo | Romeo Kouakou | Ivory Coast |
| Kouakou, Soungalo Romeo | Kouakou Soungalo Romeo | Ivory Coast |
| Kouakou, Valentin | Valentin Kouakou | Ivory Coast |
 Kouam, Ernest | Ernest Kouam | Cameroon |
 Kouam Nze, Serge Jerry | Serge Jerry Kouam Nze | Gabon |
| Kouame, Hylarie Carelle | Hylarie Carelle Kouame | Ivory Coast |
 Kouame, Koffi Maxime | Koffi Maxime Kouamé | France |
| Kouame, Krah Jacob | Kouame Krah Jacob | Ivory Coast |
| Kouame, Messou | Messou Kouame | Ivory Coast |
| Kouame, Yao Alexandre | Yao Alexandre Kouame | Ivory Coast |
| Kouame Gabouet, Jean-Luc Badara | Jean-Luc Badara Kouame Gabouet | Ivory Coast |
| Kouame Ngba, Jean-Christopher | Jean-Christopher Kouame Ngba | Ivory Coast |
 Kouanda, Mahamoudou | Mahamoudou Kouanda | Burkina Faso |
| Kouanda, Oumar | Oumar Kouanda | Burkina Faso |
| Kouande, Messou | Messou Kouande | Ivory Coast |
| Kouao, Samuel | Samuel Kouao | Ivory Coast |
| Kouassi, Adjoua Elvira | Kouassi Adjoua Elvira | Ivory Coast |
| Kouassi, Ahibe Didier | Kouassi Ahibe Didier | Ivory Coast |
| Kouassi, Brou Alexis | Brou Alexis Kouassi | Ivory Coast |
| Kouassi, Celestin | Celestin Kouassi | Ivory Coast |
| Kouassi, Djedje Patrice | Djedje Patrice Kouassi | Ivory Coast |
| Kouassi, Koffi Richard | Koffi Richard Kouassi | Ivory Coast |
| Kouassi, Kokan Gerard | Kokan Gerard Kouassi | Ivory Coast |
| Kouassi, Sara Edwige | Sara Edwige Kouassi | Ivory Coast |
| Kouassi, Yann | Kouassi Yann | Ivory Coast |
 Kouate, Lasseni | Lasseni Kouate | Mali |
 Kouate, Mansour | Mansour Kouaté | Senegal |
| Koudou, Martial | Martial Koudou | Ivory Coast |
| Koudougnon, Serges | Serges Koudougnon | Ivory Coast |
| Koudougou, Jean Bosco | Jean Bosco Koudougou | Burkina Faso |
| Kouelho, George Richard | George Richard Kouelho | Senegal |
 Koufostathis, Petros | Petros Koufostathis | Belgium |
| Koula, Kassoum | Kassoum Koula | Burkina Faso |
| Kouma, Yao | Yao Kouma | Ivory Coast |
 Koumphaphet, Sungha | Sungha Koumphaphet | Cambodja |
| Kouogueu Kouomou, Leopold | Leopold Kouogueu Kouomou | Cameroon |
 Kouperman, Iser Josypovitsj | Iser Kouperman (21.04.1922 - 06.03.2006) | |
| Kouraogo, Ablasse | Ablasse Kouraogo | Burkina Faso |
 Kouwenhoven, van, NN. | NN. van Kouwenhoven | Zuid Holland |
| Kouya, Franklin | Franklin Kouya | Ivory Coast |
| Kouziakina, Anna | Anna Kouziakina | Russia |
| Kouzouz, Yassir | Yassir Kouzouz | Belgium |
 Kovacic, Vojko | Vojko Kovacic | Slovenia |
 Kovacs, Bela | Béla Kovacs | Yugoslavia |
 Kovacs, Kitti | Kitti Kovacs | Hungary |
| Koval, Oleksandr | Oleksandr Koval | Ukraine |
| Koval, Tetiana | Tetiana Koval | Ukraine |
 Kovalenko, Alina | Alina Kovalenko | Belarus |
| Kovalenko, Evgenii | Evgenii Kovalenko | Russia |
| Kovalenko, Viktor | Viktor Kovalenko | Ukraine |
| Kovalev, Sergej | Sergej Kovalev | Russia |
 Kovalevska, Amanda | Amanda Kovalevska | Latvia |
 Kovalevskaja, Sabina | Sabina Kovalevskaja | Lithuania |
| Kovalevskij, Albert | Albert Kovalevskij | Lithuania |
| 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 |
