| Secondname | Firstname | Player | Position | First Season | Last Season | Apps | Appearances | Goals | Last Updated | Updated |
|---|---|---|---|---|---|---|---|---|---|---|
| Oualah | Zaki |  Zaki OUALAH |
Goalkeeper | 2015/16 | 2016/17 | 71 | 71 | 0 | 2025, 24th Oct | 2025-10-24 08:30:33 |
| Oxley | Joe |  Joe OXLEY |
Midfielder | 2009/10 | 2009/10 | 11 | 11 9+2 | 1 | 2025, 23rd Apr | 2025-04-23 13:11:19 |
| Obama Nvumba | Jaime |  Jaime OBAMA NVUMBA |
Winger / Striker | 2022/23 | 2022/23 | 2 | 2 1+1 | 0 | 2024, 27th Jun | 2024-06-27 10:19:46 |
| O'Connor | Dave |  Dave O'CONNOR |
Defender | 2019/20 | 2022/23 | 73 | 73 61+12 | 5 | 2023, 20th Sep | 2023-09-20 13:06:34 |
| Onokwai | Chid |  Chid ONOKWAI |
Striker | 2016/17 | 2016/17 | 6 | 6 5+1 | 1 | 2023, 12th Sep | 2023-09-12 15:33:57 |
| Ozobia | David |  David OZOBIA |
Midfielder | 2021/22 | 2021/22 | 10 | 10 8+2 | 0 | 2022, 26th Apr | 2022-04-26 12:30:57 |
| Owoeye | Ayodeji |  Ayodeji OWOEYE |
Striker | 2021/22 | 2021/22 | 7 | 7 4+3 | 0 | 2022, 26th Apr | 2022-04-26 12:29:51 |
| Okay | Erkan |  Erkan OKAY |
Defender | 2003/04 | 2003/04 | 1 | 1 | 0 | 2021, 23rd Apr | 2021-04-23 12:48:27 |
| O'Reilly | Dave | Dave O'REILLY |
1978/79 | 1994/95 | 135 | 135 133+2 | 14 | 2020, 27th May | 2020-05-27 08:19:41 | |
| Oliver | David | David OLIVER |
1978/79 | 1982/83 | 10 | 10 9+1 | 1 | 2020, 27th May | 2020-05-27 08:11:04 | |
| O'Grady | Jamie | Jamie O'GRADY |
Defender / Midfielder | 2005/06 | 2010/11 | 68 | 68 41+27 | 0 | 2020, 7th May | 2020-05-07 12:45:46 |
| O'Farrell | Micky |  Micky O'FARRELL |
Striker | 2010/11 | 2011/12 | 22 | 22 4+18 | 1 | 2020, 1st May | 2020-05-01 14:39:44 |
| Old | Julian |  Julian OLD |
Defender / Midfielder | 2006/07 | 2007/08 | 24 | 24 | 0 | 2019, 9th Aug | 2019-08-09 22:48:00 |
| Ogle | Wesley | Wesley OGLE |
1995/96 | 1995/96 | 1 | 1 0+1 | 0 | 2019, 27th Jun | 2019-06-27 10:07:50 | |
| Osborne | ? | ? OSBORNE |
1948/49 | 1949/50 | 2 | 2 | 0 | 2019, 6th Mar | 2019-03-06 13:02:09 | |
| Oxley | Jordan | Jordan OXLEY |
Midfielder | 2009/10 | 2009/10 | 18 | 18 6+12 | 0 | 2017, 16th Jun | 2017-06-16 11:36:11 |
| Owens | Shaun |  Shaun OWENS |
Midfielder | 2014/15 | 2015/16 | 68 | 68 50+18 | 4 | 2017, 31st May | 2017-05-31 16:41:20 |
| Oakley | Fred | Fred OAKLEY |
Defender | 1945/46 | 1947/48 | 65 | 65 | 0 | 2013, 11th Oct | 2013-10-11 13:32:37 |
| O'Brien | Kevin | Kevin O'BRIEN |
Goalkeeper | 1958/59 | 1966/67 | 89 | 89 | 0 | 2013, 11th Oct | 2013-10-11 13:32:15 |
| Onwere | Udo | Udo ONWERE |
Midfielder | 1999/00 | 1999/00 | 3 | 3 | 0 | 2012, 2nd Feb | 2012-02-02 03:52:57 |
| Okikiolu | Samuel | Samuel OKIKIOLU |
Defender | 2002/03 | 2002/03 | 1 | 1 | 0 | 2012, 2nd Feb | 2012-02-02 03:14:39 |
| Ounsworth | Dave | Dave OUNSWORTH |
1976/77 | 1976/77 | 8 | 8 7+1 | 0 | 2010, 24th Apr | 2010-04-24 12:26:10 | |
| O'Brien | Ian | Ian O'BRIEN |
1975/76 | 1975/76 | 15 | 15 14+1 | 1 | 2010, 23rd Apr | 2010-04-23 20:38:26 | |
| O'Reilly | Paul | Paul O'REILLY |
1992/93 | 1997/98 | 90 | 90 89+1 | 0 | 2010, 25th Jan | 2010-01-25 22:09:21 | |
| O'Brien | Aiden | Aiden O'BRIEN |
1997/98 | 1997/98 | 6 | 6 5+1 | 0 | 0000-00-00 00:00:00 | ||
| O'Dowd | Adrian | Adrian O'DOWD |
1988/89 | 1988/89 | 22 | 22 | 3 | 0000-00-00 00:00:00 | ||
| O'Shea | Danny | Danny O'SHEA |
1997/98 | 1997/98 | 13 | 13 | 0 | 0000-00-00 00:00:00 | ||
| Orchard | Keith | Keith ORCHARD |
1960/61 | 1963/64 | 6 | 6 | 2 | 0000-00-00 00:00:00 | ||
| Oudot | Ron | Ron OUDOT |
1960/61 | 1960/61 | 2 | 2 | 0 | 0000-00-00 00:00:00 |
