| 42.847 | NH Nyger HunterJeunesse Esch |  Jeunesse Esch | Atacant | 26 | 75 K € |
| 42.847 | Obule MosesAB Argir |  AB Argir | Atacant | 22 | 75 K € |
| 42.847 | Odysseas LazarisPyrgos AFC |  Pyrgos AFC | Mijlocaș | 20 | 75 K € |
| 42.847 | OK Ognjen KlenpićRadnik |  Radnik | Atacant | 20 | 75 K € |
| 42.847 | Ognjen MatanovicGraficar Belgrad |  Graficar Belgrad | Mijlocaș | 16 | 75 K € |
| 42.847 | Ognjen MilovićMladost Donja Gorica |  Mladost Donja Gorica | Portar | — | 75 K € |
| 42.847 | Ognjen ČančarevićIMT Beograd |  IMT Beograd | Portar | 37 | 75 K € |
| 42.847 | OD Oisin DuffyLimavady United |  Limavady United | Atacant | 21 | 75 K € |
| 42.847 | OK Oisin KellySligo Rovers |  Sligo Rovers | Mijlocaș | 19 | 75 K € |
| 42.847 | Oiva LaaksonenHaka |  Haka | Mijlocaș | 23 | 75 K € |
| 42.847 | OC Okechukwu Precious ChukwuArarat Yerevan |  Ararat Yerevan | Mijlocaș | 19 | 75 K € |
| 42.847 | OK Olaf KokSpakenburg |  Spakenburg | Fundaș | — | 75 K € |
| 42.847 | Olaf KozłowskiPogoń Siedlce |  Pogoń Siedlce | Mijlocaș | 21 | 75 K € |
| 42.847 | Olcay AlievMontana |  Montana | Atacant | 27 | 75 K € |
| 42.847 | Oleg YevdokimovNeman Grodno |  Neman Grodno | Mijlocaș | 32 | 75 K € |
| 42.847 | Oleg ZáhradníkZemplín Michalovce |  Zemplín Michalovce | Atacant | 16 | 75 K € |
| 42.847 | OP Oleksandr PetrenkoSlavia Prague B |  Slavia Prague B | Portar | 19 | 75 K € |
| 42.847 | Oleksandr RosputkoTekstilshchik Ivanovo |  Tekstilshchik Ivanovo | Mijlocaș | 22 | 75 K € |
| 42.847 | Oliver FisherQueen's Park |  Queen's Park | Fundaș | 19 | 75 K € |
| 42.847 | Oliver GerbigHenan⚽ |  Henan | Fundaș | 27 | 75 K € |
| 42.847 | Oliver HeidarssonKA |  KA | Atacant | 25 | 75 K € |
| 42.847 | Oliver PrattPhiladelphia Union II |  Philadelphia Union II | Fundaș | 23 | 75 K € |
| 42.847 | OS Oliver StefánssonFH |  FH | Fundaș | 24 | 75 K € |
| 42.847 | OW Oliver WadeLinfield |  Linfield | Mijlocaș | — | 75 K € |
| 42.847 | Oliver WhyteHaka | Haka | Mijlocaș | 26 | 75 K € |
| 42.847 | ON Olivier de NijsJong Almere City FC |  Jong Almere City FC | Mijlocaș | — | 75 K € |
| 42.847 | OF Olivér FeketeKarcagi SE |  Karcagi SE | Atacant | 26 | 75 K € |
| 42.847 | Oliwier MadejStal Rzeszów |  Stal Rzeszów | Mijlocaș | 16 | 75 K € |
| 42.847 | Ollie AndersonBriton Ferry Llansawel |  Briton Ferry Llansawel | Atacant | 19 | 75 K € |
| 42.847 | Ollie SamuelsCliftonville |  Cliftonville | Fundaș | 21 | 75 K € |
| 42.847 | OH Olt HaziriGjilani |  Gjilani | Fundaș | 22 | 75 K € |
| 42.847 | OA Omar Al-RashedAl-Jandal |  Al-Jandal | Mijlocaș | 27 | 75 K € |
| 42.847 | OR Omar RamadanGreenville Triumph SC |  Greenville Triumph SC | Mijlocaș | 25 | 75 K € |
| 42.847 | Omar SaeedHatta |  Hatta | Fundaș | 27 | 75 K € |
| 42.847 | Ondrej MastnyVysočina Jihlava |  Vysočina Jihlava | Portar | 24 | 75 K € |
| 42.847 | OP Ondrej PolakKladno |  Kladno | Mijlocaș | 17 | 75 K € |
| 42.847 | OV Ondrej VenclČeská Lípa |  Česká Lípa | Mijlocaș | 19 | 75 K € |
| 42.847 | OT Oneal TaylorColumbus Crew 2 |  Columbus Crew 2 | Mijlocaș | 17 | 75 K € |
| 42.847 | OY Onur YıldırımÜmraniyespor |  Ümraniyespor | Portar | — | 75 K € |
| 42.847 | Oraz SaylybaevAltai |  Altai | Fundaș | 26 | 75 K € |
| 42.847 | Orel DganiHapoel Petah Tikva |  Hapoel Petah Tikva | Fundaș | 37 | 75 K € |
| 42.847 | Oriol RomeuAvispa Fukuoka |  Avispa Fukuoka | Mijlocaș | 35 | 75 K € |
| 42.847 | OA Osama Al-JoharAl Jeel |  Al Jeel | Fundaș | 21 | 75 K € |
| 42.847 | OA Osama Al-MobairikHajer |  Hajer | Mijlocaș | — | 75 K € |
| 42.847 | Osama Al-ThumairyAl-Fayha |  Al-Fayha | Portar | 21 | 75 K € |
| 42.847 | Oscar GarridoColón |  Colón | Fundaș | — | 75 K € |
| 42.847 | Osian EvansCaernarfon Town |  Caernarfon Town | Atacant | 20 | 75 K € |
| 42.847 | Oskar LyberopoulosIF Gnistan |  IF Gnistan | Portar | 24 | 75 K € |
| 42.847 | OP Osneider PoloPirineus United |  Pirineus United | Mijlocaș | 27 | 75 K € |
| 42.847 | OA Oumar Diallo AlphaKoninklijke HFC |  Koninklijke HFC | Fundaș | — | 75 K € |
