| Name and firstname(s) | Name Toernooibase | Club or Country |
 Karimov, Mukhammadamin | Mukhammadamin Karimov | Uzbekistan |
| Karimova, Dilfuza | Dilfuza Karimova | Uzbekistan |
 Karimova, Guzel | Guzel Karimova | Russia |
 Karimzade, Firdus | Firdus Karimzade | Azerbaidzjan |
 Karklins, Eriks | Eriks Karklins | Latvia |
| Karklins, Lauris | Lauris Karklins | Latvia |
 Karman, Lambertus | Bert Karman (29.07.1935 - 14.09.2015) Add info | |
 Karman, Tim | Tim Karman | VAD Amsterdam |
| Karmanova, Valeriya | Valeriya Karmanova | Russia |
 Karmi, Judith | Judith Karmi | Israel |
| Karmi, L. | L. Karmi | Israel |
 Karmi, Lily | Lily Karmi | Canada |
 Karmoen, Ronald | Ronald Karmoen | Hijken DTC |
 Karo, Nikalas | Nikalas Karo | Belarus |
 Karoboshev, Orzubek | Orzubek Karoboshev | Kyrgystan |
 Karp, Kenneth | Kenneth Karp | Estonia |
| Karp, Heiki | Heiki Karp | Estonia |
 Karpeles, Richard | Richard Karpeles | France |
 Karpinski, Edward | Edward Karpinski | Poland |
| Karpov, Andrey | Andrey Karpov | Russia |
| Karpova-Sobakina, Ayyyna | Ayyyna Karpova-Sobakina | Russia |
| Karpovich, Palina | Palina Karpovich | Belarus |
 Karpovitsj, Oktavian Stanilavovitsj | Oktavian Stanislavovitsj Karpovitsj | Ukraine |
| Karregat, Cor | Cor Karregat (08.03.1940 - 17.01.2020) Add info | |
 Karregat, Klaas | Klaas Karregat | |
| Karregat, Piet | Piet Karregat | |
 Karssing, Marcel | Marcel Karssing | DIOS-Eureka |
| Karst, Hinderikus | Rieks Karst (27.03.1947 - 23.06.2015) Add info | |
| Karsten, J. | J. Karsten | |
 Kartodikromo, Virgil | Kartodikromo Virgil | Suriname |
| Kartoef, Philip | Philip Kartoef (05.06.1905 - 28.02.1943) Add info | |
| Kartotaroeno, Robbert | Robbert Kartotaroeno | Suriname |
| Karus, Waldemar | Waldemar Karus | Poland |
 Karvelyte, Urte | Urte Karvelyte | Lithuania |
| Kas, Heidi | Heidi Kas | |
 Kasamwidjojo, Marcha | Marcha Kasamwidjojo | SNA Heerhugowaard |
 Kasangaki, Jude | Jude Kasangaki | DC Hilversum |
| Kasanpawiro, K. | K. Kasanpawiro | Suriname |
| Kasanwidjojo, Serdjino | Serdjino Kasanwidjojo | SNA Heerhugowaard |
 Kasca, Bernard | Bernard Kašca (05.05.1958 - 24.03.2019) Add info | |
 Kasca, Kristjan | Kristjan Kašca | Slovenia |
| Kasdiran, Armand | Armand Kasdiran | Suriname |
| Kasendra, Wladyslaw | Wladyslaw Kasendra | Poland |
| Kashapov, Aidar | Aidar Kashapov | Russia |
 Kashif Javed, Muhammad | Muhammad Kashif Javed | Pakistan |
| Kashina, Daria | Daria Kashina | Russia |
| Kashnikau, Aliaksei | Aliaksei Kashnikau | Belarus |
| Kashnikava, Nastassia | Nastassia Kashnikava | Belarus |
| Kasi, Jimmy | Jimmy Kasi | Suriname |
| Kasimovs, T. | T. Kasimovs | Latvia |
| Kask, Adeele | Adeele Kask | Estonia |
| Kask, Karl Jaagup | Karl Jaagup Kask | Estonia |
| Kask, Liina | Liina Kask | Estonia |
| Kask, Liina (dubbel) | dubbele invoer | |
| Kask, Margit | Margit Kask | Estonia |
| Kask, Marta | Marta Kask | Estonia |
 Kasnadi, Shammie | Shammie Kasnadi | Damclub Dordrecht |
 Kasper, Dion | Dion Kasper | DV VBI Huissen |
| Kasper, Timme | Timme Kasper | DV VBI Huissen |
| Kasperek, Tadeusz | Tadeusz Kasperek | Poland |
 Kaspers, Harry | Harry Kaspers | O.K.K. |
| Kasputyte, Margarita | Margarita Kasputyté | Lithuania |
| Kasputyte, Milda | Milda Kasputyté | Lithuania |
 Kasse, Daaf | Daaf Kasse | Damlust Gouda |
| Kasse, Marietje | Marietje Kasse | |
 Kassels, Remon | Remon Kassels | Sranti |
| Kassia, NN. | NN. Kassia | France |
 Kassing, Luuk | Luuk Kassing | Zenderstad |
| Kassing, Marit | Marit Kassing | |
 Kassym, Alima | Alima Kassym | Kazachstan |
| Kassym, Karima | Karima Kassym | Kazachstan |
| Kasteel, Hendrik | Henk Kasteel (10.07.1914 - 18.05.1987) Add info | |
 Kasteel, J.C. | J.C. Kasteel | Componisten |
| Kastelein, Andre | André Kastelein | |
| Kastelein, Jaco | Jaco Kastelein | |
| Kastelein, Twan | Twan Kastelein | |
| Kastelijn, Antonius | Antonius Kastelijn ( - 27.04.1987) Add info | |
 Kastelijn, Astrid | Astrid Kastelijn | DOG Uden |
| Kastenberg, Luuk | Luuk Kastenberg | |
| Kastenberg, Ruben | Ruben Kastenberg | |
 Kasteren, van, Wim | Wim van Kasteren | DAmateurs |
| Kastsiankou, Daniil | Daniil Kastsiankou | Belarus |
| Kasyan, Ekaterina | Ekaterina Kasyan | Ukraine |
| Kasyan, Marina | Marina Kasyan | Ukraine |
 Kasymow, Tulkun | Tulkun Kasymow | USSR |
| Kaszuba, Alicja | Alicja Kaszuba | Poland |
| Kat, Pieter Cornelis | Pieter Cornelis Kat (05.03.1883 - 16.12.1939) Add info | |
| Kat, de, Philip | Philip de Kat | Componisten |
 Katako, katako | Katako Ngoyi | Congo Democratic Republic |
| Kate, ten, | ten Kate | Componisten |
| Kateiva, Saulus | Saulus Kateiva | Lithuania |
 Kater, William | William Kater | Urk Aan Zet |
 Katerberg, Hans | Hans Katerberg | Vries |
 Katerstede, Ronald | Ronald Katerstede | Hartholt Olie Heino |
| Katerstede, Jeroen | Jeroen Katerstede | |
| Katerynchyk, Roman | Roman Katerynchyk | Ukraine |
| Katjucha, Aleksandr Jakovlevitsj | Aleksandr Katjucha | Ukraine |
| Katkovskaja, Ilona | Ilona Katkovskaja | Estonia |
| Katlaps, Andris | Andris Katlaps | Latvia |
| Katny, Samuel | Samuel Katny | Poland |
