| Name and firstname(s) | Name Toernooibase | Club or Country |
 Nuriyeva, Samira | Samira Nuriyeva | Azerbaidzjan |
| Nurullayev, Nazim | Nazim Nurullayev | Azerbaidzjan |
| Nurullayeva, Kifayat | Kifayat Nurullayeva | Azerbaidzjan |
| Nurullazade, Nigar | Nigar Nurullazade | Azerbaidzjan |
 Nutdanai, Jaratwiboonkul | Jaratwiboonkul Nutdanai | Thailand |
 Nuvel, van, Paul Philippe | Paul Philippe van Nuvel | France |
 Nuyts, Marc | Marc Nuyts | Belgium |
 Nyambayar, Khangai | Khangai Nyambayar | Mongolia |
 Nyambi, Valentin | Valentin Nyambi | Cameroon |
| Nyamdavaa, Amarbayasgalan | Amarbayasgalan Nyamdavaa | Mongolia |
| Nyamjav, Nomin | Nomin Nyamjav | Mongolia |
| Nyamkhuu, Naljormaa | Naljormaa Nyamkhuu | Mongolia |
| Nyamsambuu, Khosbayar | Khosbayar Nyamsambuu | Mongolia |
| Nyamsambuu, Zolbayar | Zolbayar Nyamsambuu | Mongolia |
 Nyamsi Tomi, Maturin | Maturin Nyamsi Tomi | CEMA - De Vaste Zet Geleen |
| Nyamsuren, Lkhagvasuren | Lkhagvasuren Nyamsuren | Mongolia |
| Nyangar, Byambajargal | Byambajargal Nyangar | Mongolia |
 Nyangasa, Nzita Tity | Nzita Tity Nyangasa | Congo Democratic Republic |
 Nych, Anatoli Grigorijevitsj | Anatoli Nych | Ukraine |
| Nyland, D.M. | D.M. Nyland | Belgium |
 Nyrov, Arsen | Arsen Nyrov | Russia |
| Nyssen, Andre | André Nyssen | Belgium |
| Nyssen, Renee | Renée Nyssen | Belgium |
| Nyssens, Frederic | Frédéric Nyssens | Belgium |
| Nyssens, Hughes | Hughes Nyssens | Belgium |
| Nzaya , Chance | Chance Nzaya Wonso | Congo Democratic Republic |
 Nzazi, Trezeguet | Trezeguet Nzazi Kalanda | Angola |
| Nzeza Ntalu, Brown | Brown Nzeza Ntalu | Congo Democratic Republic |
| Nzouangwa, Darcisse | Darcisse Nzouangwa | Cameroon |
| Nzuzi, Charly | Charly Nzuzi Mbongosi | Congo Democratic Republic |
| Nzuzi, Nzuzi | Nzuzi Nzuzi | Congo Democratic Republic |
| Nzuzi, Pierre | Pierre Nzuzi Lukoki | Congo Democratic Republic |
 Oberoi, Tarannum | Tarannum Oberoi | India |
 Oblescak, Ljubo | Ljubo Oblešcak | Slovenia |
 Obornik, Matej | Matej Obornik | Czech Republic |
 Obtsjedkov, S. | S. Obtsjedkov | USSR |
| Obukhova, Diana | Diana Obukhova | Russia |
| Ochirbat, Batmunkh | Batmunkh Ochirbat | Mongolia |
 Ociepa, Barbara | Barbara Ociepa | Poland |
| Odbayar, Ariunjargal | Ariunjargal Odbayar | Mongolia |
| Oderkiewicz, Przemyslaw | Przemyslaw Oderkiewicz | Poland |
| Odia, Emmanuel | Emmanuel Odia | France |
| Odintsjow, Vladimir | Vladimir Odintsjow | USSR |
| Odnoo, Odontuya | Odontuya Odnoo | Mongolia |
| Odor, Jan | Jan Odor | Belgium |
 Odrins, Arturs | Arturs Odrins | Latvia |
 Oduber, Eddy | Eddy Oduber | Aruba |
 Oeditdoebe, Robby | Robby Oeditdoebe | Suriname |
 Oepasie, Bisoenkoemar | Bisoenkoemar Oepasie (16.06.1958 - 25.06.2023) Add info | |
 Offerman, Rudsel | Rudsel Offerman | Curacao |
| Ogorodnikov, Jurij | Jurij Ogorodnikov | USSR |
 Oh, En-Jie | En-Jie Oh | Taipei |
 Ojabstein, Uudo | Uudo Ojabstein | Estonia |
| Okoemov, Konstantin | Konstantin Okoemov | Russia |
| Okoneshnikov, Ruslan | Ruslan Okoneshnikov | Russia |
| Okraszewski, Wojciech | Wojciech Okraszewski | Poland |
| Oksman, Boris | Boris Oksman | Russia |
| Olaerts, Harry | Harry Olaerts | Belgium |
| Olaerts, Maria | Maria Olaerts | Belgium |
| Olaerts, Paula | Paula Olaerts | Belgium |
| Olaerts, Piet | Piet Olaerts | Belgium |
 Olaniyan, Abdul Mandjide Babatunde Razak | Abdul Mandjide Babatunde Razak Olaniyan | Ivory Coast |
 Olechnovicius, A. | A. Olechnovicius | Lithuania |
| Olejnik, Bernard | Bernard Olejnik | Poland |
| Olejnik, Grazyna | Grazyna Olejnik | Poland |
| Olejnik, Jakub | Jakub Olejnik | Poland |
| Olejnik, Sergey | Sergey Olejnik | Ukraine |
| Olekseenko, Valentina | Valentina Olekseenko | Ukraine |
| Oleksienko, Lidia | Lidia Oleksienko | Ukraine |
| Oleksiuk, Ivan | Ivan Oleksiuk | Ukraine |
| Oleksiuk, Natalia | Natalia Oleksiuk | Ukraine |
 Olenburger, Victoria | Victoria Olenburger | Germany |
 Olimov, Firdavs | Firdavs Olimov | Uzbekistan |
| Olimov, Fitrat | Fitrat Olimov | Uzbekistan |
| Olina, Liva | Liva Olina | Latvia |
 Oliphant, Donald | Donald Oliphant | Great-Britain |
 Olius, Georges | Georges Olius | Haiti |
| Olivan, Thomas | Thomas Olivan | France |
 Olivares, Aureliano | Aureliano Olivares | Dominican Republic |
| Olivares, Victor | Victor Olivares | Dominican Republic |
| Olive, Victorin | Victorin Olive | France |
 Oliveira, Celestino | Celestino Oliveira | Brazil |
| Oliveira, Claudio Gusmao Verdeiro | Claudio Gusmao Verdeiro Oliveira | Brazil |
| Oliveira Massola, Lucas | Lucas Oliveira Massola | Brazil |
 Olivier, C. | C. Olivier | Switzerland |
| Olivo , Dionicio | Dionicio Olivo | Dominican Republic |
| Oliynyk, Kostiantyn | Kostiantyn Oliynyk | Ukraine |
| Oliynyk, Yevhen | Yevhen Oliynyk | Ukraine |
 Olsen, Arthur | Arthur Olsen | USA |
| Olszak, Piotr | Piotr Olszak | Poland |
| Olszewska, Malgorzata | Malgorzata Olszewska | Poland |
 Oluwatoyin, Akinwola | Akinwola Oluwatoyin | Nigeria |
 Omarov, Rustem | Rustem Omarov | Kazachstan |
| Omata, Mitsuo | Mitsuo Omata (28.09.1937 - 21.01.2014) Add info | |
| Omolola Jeje, Awotodunbo | Awotodunbo Omolola Jeje | Nigeria |
| Onashko, Artem | Artem Onashko | Ukraine |
| Onikov, Mikhail | Mikhail Onikov | Russia |
| Onishenko, Ruslan | Ruslan Onishenko | Ukraine |
 Onistjenko, A. | A. Onistjenko | Foreign players |
| Ooghe, Marcel | Marcel Ooghe | France |
