| Player | Country | Position | born | |
|---|---|---|---|---|
| A | ||||
| Reda Akbib |
|
Belgium | Defender | 29/01/2001 |
| Kerian Atheba |
|
Belgium | Goalkeeper | 31/05/2001 |
| B | ||||
| Soulaimane Berradi |
|
Belgium | Forward | 20/11/2004 |
| C | ||||
| Samuel Chukwudi |
|
Faroe Islands | Defender | 25/06/2003 |
| D | ||||
| Lucas Defise |
|
Belgium | Midfielder | 19/10/2001 |
| G | ||||
| Tiago Gomes |
|
Belgium | Goalkeeper | 14/08/2002 |
| K | ||||
| Shuntaro Koga |
|
Japan | Forward | 27/08/1998 |
| Olaf Kozłowski |
|
Poland | Midfielder | 19/05/2005 |
| M | ||||
| Milan M'Beng |
|
France | Defender | 06/04/2002 |
| Ilias Moutha-Sebtaoui |
|
Belgium | Goalkeeper | 01/04/1999 |
| N | ||||
| Joël Nganga |
|
Belgium | Forward | 24/03/2000 |
| P | ||||
| Pedro Lubamba |
|
Angola | Forward | 13/09/2002 |
| S | ||||
| Ryan Safari |
|
Belgium | Forward | 30/05/2003 |
| Adrien Saussez |
|
Belgium | Goalkeeper | 25/08/1991 |
| Abderahmane Soussi |
|
Belgium | Forward | 30/01/2003 |
| T | ||||
| Guillaume Thiry |
|
Belgium | Midfielder | 27/09/1999 |
| Z | ||||
| Ilyes Ziani |
|
Belgium | Forward | 20/06/2003 |
![Union Saint-Gilloise [U18]](https://s.hs-data.com/bilder/wappen/mini/45788.gif?fallback=png "Union Saint-Gilloise [U18]"){kind=small}
![Union Saint-Gilloise [U16]](https://s.hs-data.com/bilder/wappen/mini/45791.gif?fallback=png "Union Saint-Gilloise [U16]"){kind=small}
![Union Saint-Gilloise [Youth]](https://s.hs-data.com/bilder/wappen/mini/45794.gif?fallback=png "Union Saint-Gilloise [Youth]"){kind=small}