| Name |
Nationality |
| |
Date of birth |
| Op de Beeck, Jean-Pierre | 
Belgium | 
| |
20-11-1958 |
| Op 't Eyndt, Jos |
Belgium |
| |
15-04-1960 |
| Op de Beeck, Jozef |
Belgium |
| |
17-02-1941 |
| Op de Beeck, Louisa |
Belgium | 
| |
00-00-0000 |
| Op 't Hoog, Richard | 
The Netherlands |
| |
00-00-0000 |
| Op De Beeck, Roos |
Belgium |
| |
08-06-1997 |
| Op de Beeck, Thomas |
Belgium |
| |
25-06-1990 |
| Op 't Eynde, Thomas |
Belgium |
| |
11-01-1989 |
| Opačić, Neda | 
Serbia |
| |
23-06-2000 |
| Opalinski, Marcin | 
Poland |
| |
20-05-1983 |
| O'Parrel, Jim | 
Australia |
| |
00-00-0000 |
| Opava, Jan | 
Czech Republic |
| |
00-00-0000 |
| Opavsky, Jiri |
Czech Republic |
| |
11-01-1931 |
| Opazo, Francisco | 
Chile |
| |
00-00-0000 |
| Opdam, Jonathan |
The Netherlands |
| |
00-00-0000 |
| Opdebeeck, Englebert |
Belgium |
| |
27-12-1946 |
| Opdebeeck, Marcel |
Belgium |
| |
00-00-0000 |
| Opdenacker, Ivan |
Belgium |
| |
00-00-0000 |
| Opdenbosch, V. |
Belgium |
| |
00-00-0000 |
| Opdorp, Gunther |
Belgium |
| |
10-12-1970 |
| Opdyke, Daniel | 
United States of America |
| |
00-00-0000 |
| Opeel, Roland |
Belgium |
| |
00-00-0000 |
| Opeka, Ajda | 
Slovenia |
| |
31-10-1979 |
| Opel, Carl | 
Germany |
| |
31-08-1869 |
| Opel, Fritz |
Germany |
| |
31-03-1875 |
| Opel, Heinrich |
Germany |
| |
22-09-1873 |
| Opel, Ludwig |
Germany |
| |
01-01-1880 |
| Opel, Marshall |
United States of America |
| |
00-00-0000 |
| Opel, Wilhelm |
Germany |
| |
15-05-1871 |
| Operto, Stéphane | 
Monaco |
| |
25-11-1966 |
| Opet, Tomáš | 
Slovakia |
| |
05-06-2003 |
| Opeyemi, Adeniran | 
Nigeria |
| |
00-00-0000 |
| Opgård, Johan | 
Norway |
| |
15-10-1992 |
| Ophey, Geert |
The Netherlands |
| |
16-12-1971 |
| Ophof, Edwin |
The Netherlands |
| |
05-10-1964 |
| Ophof, Randy |
The Netherlands |
| |
07-02-1994 |
| Opiat, Mieczysław |
Poland |
| |
00-00-0000 |
| Opie, Chris | 
Great Britain |
| |
22-07-1987 |
| Opie, W. |
Great Britain |
| |
00-00-0000 |
| Öpik, Jaan | 
USSR |
| |
00-00-0000 |
| Opitz, Konrad Michael |
Germany |
| |
19-12-1985 |
| Oplinus, Christ |
Belgium |
| |
05-05-1964 |
| Oplinus, Maurits |
Belgium |
| |
21-01-1907 |
| Oppeel, Jurgen |
Belgium |
| |
14-12-1969 |
| Oppel, Simon | 
Austria |
| |
28-04-2004 |
| Oppenheimer, William Renwick |
Great Britain |
| |
00-00-0000 |
| Oppenneer, Casper |
The Netherlands |
| |
14-04-1989 |
| Opperman, Bruce |
Australia |
| |
00-00-0000 |
| Opperman, Hubert |
Australia |
| |
29-05-1904 |
| Opperman, Matthew |
Australia |
| |
00-00-0000 |
| Opperman, Sidney |
Great Britain |
| |
00-00-0000 |
| Oppermann, Bjørn | 
Denmark |
| |
02-10-1973 |
| Oppermann, Marc |
Germany |
| |
00-00-0000 |
| Oppewal, Taeke |
The Netherlands |
| |
18-07-1969 |
| Oppi, ? | 
Italy |
| |
00-00-0000 |
| Oppici, Alessandro |
Italy |
| |
07-12-1981 |
| Oppici, Fausto |
Italy |
| |
00-00-0000 |
| Oppici, Mattia |
Italy |
| |
07-05-2000 |
| Oppizzi, Matteo | 
Switzerland |
| |
05-03-2003 |
| Oppliger, Julien |
Switzerland |
| |
23-04-1991 |
| Oprandi, Osvaldo |
Italy |
| |
00-00-0000 |
| Oprea, Lucian | 
Romania |
| |
09-08-1993 |
| Oprea, Ovidiu Tudor |
Romania |
| |
10-09-1976 |
| O'Prey, Bruce |
Great Britain |
| |
00-00-0000 |
| Oprins, Ad |
The Netherlands |
| |
25-08-1950 |
| Oprins, Frans |
Belgium |
| |
27-08-1910 |
| Oprins, Joseph |
The Netherlands |
| |
00-00-0000 |
| Oprins, Jules |
Belgium |
| |
16-02-1916 |
| Opryshko, Oleg | 
Ukraine |
| |
16-07-1986 |
| Opsahl, Martine |
Norway |
| |
05-04-1999 |
| Opsomer, Arne |
Belgium |
| |
19-05-1991 |
| Opsomer, Gert-Jan |
Belgium |
| |
02-05-1991 |
| Opsomer, Jan-Bart |
Belgium |
| |
07-12-1994 |
| Opsomer, Nicolas | 
France |
| |
00-00-0000 |
| Øpstad, Mari Klev |
Norway |
| |
15-10-1990 |
| Opstal, Sabrina |
The Netherlands |
| |
17-06-1988 |
| Optiz, Konrad Michael |
Germany |
| |
00-00-1985 |
| Oquendo Zabala, Carlos Mario | 
Colombia |
| |
16-11-1987 |
| Oquendo Zabala, David |
Colombia |
| |
01-04-1992 |
| Oquendo, Fernando |
Colombia |
| |
00-00-0000 |
| Oquendo, Victor | 
Venezuela |
| |
27-01-1992 |
| O'Quinn, Darrell |
United States of America |
| |
00-00-0000 |
| Or, Paschur | 
Israel |
| |
00-00-0000 |
| Orabi, Mohamed | 
Syrian Arab Republic |
| |
00-00-0000 |
| Oraiba, Hamid | 
Iraq |
| |
29-11-1941 |
| Oraibi, Hamid |
Iraq |
| |
00-00-1941 |
| Oram, Alan |
Australia |
| |
00-00-0000 |
| Oram, James | 
New Zealand |
| |
17-06-1993 |
| Oram, Jason |
Great Britain |
| |
00-00-0000 |
| Orange, Kiernan | 
Canada |
| |
03-12-1992 |
| Orange, Robert |
Canada |
| |
02-04-1962 |
| Oranje, Claudia |
The Netherlands |
| |
00-00-0000 |
| Oranje, Sebastiaan |
The Netherlands |
| |
00-00-0000 |
| Orantes Vela, Ana | 
Guatemala |
| |
00-00-2000 |
| Orantes Solares, Selvin Fabricio |
Guatemala |
| |
18-10-1976 |
| Oranza, Ronald | 
Philippines |
| |
02-12-1992 |
| Oras, Allan | 
Estonia |
| |
20-12-1975 |
| Orav, Hugo-Hendrik |
Estonia |
| |
00-00-2008 |
| Oravamäki, Joona | 
Finland |
| |
00-00-0000 |
| Oravec, Lubos |
Slovakia |
| |
01-02-1972 |
