| No. | Name | Birth Date | Age | Country | Position | Height | Weight | Preferred foot |
| 5 | Jan Vertonghen | 1987-04-24 | 37 | Defender | 189 | 79 | Left | |
| Axel Witsel | 1989-01-12 | 35 | Midfielder | 186 | 81 | Right | ||
| Toby Alderweireld | 1989-03-02 | 35 | Defender | 186 | 81 | Right | ||
| 12 | Thomas Kaminski | 1992-10-23 | 31 | Guard | 190 | 70 | Both | |
| 1 | Koen Casteels | 1992-06-25 | 31 | Guard | 197 | 78 | Right | |
| Thibaut Courtois | 1992-05-11 | 32 | Guard | 199 | 96 | Left | ||
| Kevin De Bruyne | 1991-06-28 | 32 | Midfielder | 181 | 68 | Right | ||
| 13 | Matz Sels | 1992-02-26 | 32 | Guard | 188 | 75 | Right | |
| 10 | Romelu Lukaku | 1993-05-13 | 31 | Forward | 190 | 93 | Left | |
| Hans Vanaken | 1992-08-24 | 31 | Midfielder | 195 | 77 | Both | ||
| 15 | Thomas Meunier | 1991-09-12 | 32 | Defender | 191 | 90 | Right | |
| 11 | Leandro Trossard | 1994-12-04 | 29 | Midfielder | 172 | 61 | Right | |
| 23 | Michy Batshuayi | 1993-10-02 | 30 | Forward | 185 | 78 | Right | |
| Yannick Carrasco | 1993-09-04 | 30 | Forward | 180 | 67 | Both | ||
| 21 | Timothy Castagne | 1995-12-05 | 28 | Midfielder | 185 | 80 | Right | |
| 8 | Youri Tielemans | 1997-05-07 | 27 | Midfielder | 176 | 72 | Both | |
| 4 | Wout Faes | 1998-04-03 | 26 | Defender | 187 | 84 | Right | |
| 14 | Dodi Lukebakio | 1997-09-24 | 26 | Midfielder | 187 | 77 | Left | |
| 18 | Orel Mangala | 1998-03-18 | 26 | Midfielder | 178 | 79 | Right | |
| Sebastiaan Bornauw | 1999-03-22 | 25 | Defender | 191 | 81 | Right | ||
| 9 | Lois Openda | 2000-02-16 | 24 | Forward | 177 | 75 | Right | |
| Alessio Castro-Montes | 1997-05-17 | 27 | Defender | 175 | 67 | Right | ||
| Alexis Saelemaekers | 1999-06-27 | 24 | Midfielder | 180 | 72 | Right | ||
| 25 | Arnaud Bodart | 1998-03-11 | 26 | Guard | 184 | 75 | Right | |
| 7 | Jeremy Doku | 2002-05-27 | 22 | Forward | 173 | 68 | Right | |
| 6 | Amadou Onana | 2001-08-16 | 22 | Midfielder | 192 | 76 | Both | |
| Maxime De Cuyper | 2000-12-22 | 23 | Defender | 183 | 72 | Left | ||
| 17 | Charles De Ketelaere | 2001-03-10 | 23 | Midfielder | 192 | 74 | Left | |
| 16 | Olivier Deman | 2000-04-06 | 24 | Midfielder | 181 | 67 | Left | |
| Ameen Al-Dakhil | 2002-03-06 | 22 | Midfielder | 187 | 70 | Right | ||
| 3 | Arthur Theate | 2000-05-25 | 24 | Defender | 185 | 78 | Left | |
| Hugo Siquet | 2002-07-09 | 21 | Defender | 180 | 69 | Right | ||
| 22 | Aster Vranckx | 2002-10-04 | 21 | Midfielder | 183 | 78 | Both | |
| 24 | Koni De Winter | 2002-06-12 | 21 | Defender | 191 | 85 | Right | |
| 2 | Zeno Debast | 2003-10-24 | 20 | Midfielder | 189 | 73 | Right | |
| 19 | Johan Bakayoko | 2003-04-20 | 21 | Forward | 179 | 70 | Left | |
| Mandela Keita | 2002-05-10 | 22 | 180 | 0 | Right | |||
| Kyriani Sabbe | 2005-01-26 | 19 | 175 | 0 | Right | |||
| Malick Fofana | 2005-03-31 | 19 | 170 | 60 | Left | |||
| 20 | Arthur Vermeeren | 2005-02-07 | 19 | 176 | 0 | Right |