| Name and firstname(s) | Name Toernooibase | Club or Country |
 Brzozowski, Nikodem | Nikodem Brzozowski | Poland |
| Brzykcy, Marta | Marta Brzykcy | Poland |
 Bua, Alfio | Alfio Bua | Belgium |
| Bua, Giovanni | Giovanni Bua | Belgium |
 Bualu, Dubois | Dubois Bualu | Congo Democratic Republic |
 Bubbi, Raoul | Raoul Bubbi | Italy |
 Bucher, Roger | Roger Bücher | Switzerland |
| Buchet, A. | A. Buchet | Belgium |
| Bucholtz, Wendy | Wendy Bucholtz | Belgium |
 Bucinskaite-Lizdene, Agne | Agne Bucinskaite-Lizdene | Lithuania |
| Buck, de, Achiel | Achiel de Buck | Belgium |
| Buck, de, P. | P. de Buck | Belgium |
| Buczkowski, Andrzej | Andrzej Buczkowski | Poland |
| Buczkowski, Wlodzimierz | Wlodzimierz Buczkowski | Poland |
| Budiaki, | Budiaki | Congo Democratic Republic |
| Budis, Oskar | Oskar Budis | Poland |
 Budreika, Martins | Martins Budreika | Latvia |
| Budreika, Nora | Nora Budreika | Latvia |
| Budreika, Vitauts | Vitauts Budreika | Latvia |
 Budyk, Viacheslav | Viacheslav Budyk | Czech Republic |
 Bueno, Perez Laziro | Perez Laziro Bueno | Cuba |
 Buffet, Georges | Georges Buffet | |
| Bugaev, Igor | Igor Bugaev | Lithuania |
 Bugajev, Yuri Nikolajevtisj | Yuri Nikolajevtisj Bugajev | Ukraine |
 Buggy (Nicolas Guibert), | Buggy (Nicolas Guibert) | France |
| Bugis, Ivo | Ivo Bugis | Latvia |
 Bugos, William Gomez | William Gomez Bugos | Dominican Republic |
| Buhchtab, Boris | Boris Buhchtab | Ukraine |
| Buicenka, Algirdas | Algirdas Buicenka | Lithuania |
| Buika, Mongly | Mongly Buika Lukombo | Congo Democratic Republic |
 Builina, Hanna | Hanna Builina | Belarus |
| Buisson, Pierre | Pierre Buisson | France |
 Buitendorp, Theo | Theo Buitendorp | Suriname |
| Buitenhuis, NN. | NN. Buitenhuis | Belgium |
| Bukasa Dingombe, Alain | Alain Bukasa Dingombe | Congo Democratic Republic |
 Bukhbat, Battsetseg | Battsetseg Bukhbat | Mongolia |
| Bukin, Nikolay | Nikolay Bukin (01.01.1993 - 22.05.2018) Add info | |
| Bukovskis, | Bukovskis | Latvia |
 Bukreev, Kirill | Kirill Bukreev | Russia |
| Buksha, Vasyl | Vasyl Buksha | Ukraine |
| Bulat, Vadim Eduardovits | Vadim Bulat (25.03.1959 - 19.01.2024) Add info | |
 Bulatov, Alexander | Alexander Bulatov | DV VBI Huissen |
| Bulatov, I. | I. Bulatov | Ukraine |
| Bulcke, van den, Bart | Bart van den Bulcke | Belgium |
| Bulcke, van den, Jeroen | Jeroen van den Bulcke | Belgium |
| Bulinin, Igor | Igor Bulinin | Russia |
 Bulk, Cees | Cees Bulk | |
| Bullas, Adrien | Adrien Bullas | France |
| Bulthe, A. | A. Bulthe | France |
| Bultynck, Rinse | Rinse Bultynck | Belgium |
| Bumbule, Dzintra | Dzintra Bumbule | Latvia |
| Bumeistars, Krist | Krist Bumeistars | Latvia |
| Bunderen, van, Chris | Chris van Bunderen | Belgium |
| Bunderen, van, Gert | Gert van Bunderen | Belgium |
| Buntinx, Jean | Jean Buntinx | Belgium |
 Bunyaworakun, Pattamaporn | Pattamaporn Bunyaworakun | Thailand |
 Buonsignore, Silvio | Silvio Buonsignore | Monaco |
| Bupeeva-Sarshoeva, Zhanna | Zhanna Bupeeva-Sarshoeva | Russia |
| Buquet, Armand | Armand Buquet | France |
| Buranova, Natalia | Natalia Buranova | Ukraine |
| Burck, de, E. | E. de Burck | Belgium |
| Burdajewicz, Aniela | Aniela Burdajewicz | Poland |
 Burdykin, A. | A. Burdykin | USSR |
| Burek, Sara | Sara Burek | Poland |
| Burenbat, Uudambaatar | Uudambaatar Burenbat | Mongolia |
| Burenjargal, T. | T. Burenjargal | Mongolia |
| Burg, Henri | Henri Burg | Belgium |
| Burger, Anna | Anna Burger | Belgium |
| Burger, Claude | Claude Burger | Belgium |
| Burkhanov, Askar | Askar Burkhanov | Russia |
| Burleson, Guno | Guno Burleson | Suriname |
| Burmaa, Choisuren | Choisuren Burmaa | Mongolia |
| Burmistrov, Andrei | Andrei Burmistrov | Russia |
| Burnasheva, Aleksandra | Aleksandra Burnasheva | Russia |
| Burneebaatar, Baasanbar | Baasanbar Burneebaatar | Mongolia |
 Burrell, Herbert | Herbert Burrell | USA |
| Bursuk, Anton | Anton Bursuk | Russia |
| Burton, NN. | NN. Burton | Belgium |
| Bury, Igor | Igor Bury | France |
| Buset, Caroline | Caroline Buset | Belgium |
| Bushuev, Aiaal | Aiaal Bushuev | Russia |
| Bushueva, Ekaterina | Ekaterina Bushueva (08.12.1962 - 17.12.2011) Add info | |
| Busko, Bogdan | Bogdan Busko | Belgium |
| Busschaert, J. | J. Busschaert | Belgium |
| Bussche, vanden, Charles | Charles vanden Bussche | Belgium |
| Bussche, vanden, Luc | Luc vanden Bussche | Belgium |
 Butcher, Carl | Carol Butcher | Grenada |
| Buteri, Jean Claude | Jean Claude Buteri | France |
| Butin, Patrick | Patrick Butin | France |
| Butkevicius, Alfonsas V. | Alfonsas V. Butkevicius | Lithuania |
| Butkevitsj, Adolf Veniaminovitsj | Adolf Veniaminovitsj Butkevitsj (18.06.1914 - 11.07.1983) Add info | |
| Butkjavitsjus, Arturas | Arturas Butkjavitsjus | Lithuania |
| Butler, Clayton | Clayton Butler | USA |
| Butlyar, Ivan | Ivan Butlyar | Ukraine |
| Butna, NN. | NN. Butna | Belgium |
| Butulis, Benno | Benno Butulis | Latvia |
| Buvat, Cyrille | Cyrille Buvat | France |
| Buyan-Ulzii, Bat-Otgon | Bat-Otgon Buyan-Ulizii | Mongolia |
| Buyankhishig, Battulga | Battulga Buyankhishig | Mongolia |
| Buyanskaya, Olena | Olena Buyanskaya | Ukraine |
