| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Daniel Zítka | 1975-06-20 | 189 | 85 | Retired | ||
| GK | Silvio Proto | 1983-05-23 | 187 | 72 | 2017 jun | ||
| D | Anthony Vanden Borre | 1987-10-24 | 185 | 78 | 2017-06-30 | ||
| D | Fabrice Ehret | 1979-09-28 | 184 | 70 | |||
| D | Olivier Deschacht | 1981-02-16 | 186 | 75 | 2015 jun | ||
| D | Roland Juhász | 1983-07-01 | 193 | 80 | 2018-06-30 | ||
| D | Vincent Kompany | 1986-04-10 | 191 | 85 | 2019-06-30 | ||
| M | Bart Goor | 1973-04-09 | 183 | 75 | 2012 | ||
| M | Cheick Tiote | 1986-06-21 | 179 | 84 | 2017-06-30 | ||
| F | Grégory Pujol | 1980-01-25 | 183 | 70 | |||
| F | Sami Allagui | 1986-05-28 | 186 | 78 | 2017-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 10.Jul | Isaac Kiese Thelin (F) | Kasimpasa SK | RSC Anderlecht | Confirmed | |
| 3.Feb | Isaac Kiese Thelin (F) | RSC Anderlecht | Kasimpasa SK | Confirmed | |
| 8.Dec | Isaac Kiese Thelin (F) | Malmö FF | RSC Anderlecht | Confirmed | |
| 9.Jan | Isaac Kiese Thelin (F) | RSC Anderlecht | Malmö FF | Confirmed | |
| 30.Jun | Henry Onyekuru (F) | RSC Anderlecht | Everton FC | Confirmed | |
| 30.Jun | Robert Beric (F) | RSC Anderlecht | AS Saint Etienne | Confirmed | |
| 31.May | Matz Sels (GK) | RSC Anderlecht | Newcastle United | Confirmed | |
| 30.Jun | Aaron Leya Iseka (F) | Olympique de Marseille | RSC Anderlecht | Confirmed | |
| 30.Jun | Uros Spajic (D) | RSC Anderlecht | Toulouse FC | Confirmed | |
| 30.Jun | Sebastien De Maio (D) | ACF Fiorentina | RSC Anderlecht | Confirmed |