| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Ján Novota | 1983-11-29 | 199 | 96 | 2018-06-30 | ||
| F | Joelinton | 1996-08-14 | 186 | 80 | 2020-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 3.Jan | Arnor Ingvi Traustason (M) | SK Rapid Wien | Malmö FF | Confirmed | |
| 24.Jun | Joelinton (F) | TSG 1899 Hoffenheim | SK Rapid Wien | Confirmed | |
| 17.Jun | Florian Kainz (M) | SK Rapid Wien | SV Werder Bremen | Confirmed | |
| 12.May | Arnor Ingvi Traustason (M) | IFK Norrköping | SK Rapid Wien | Confirmed | |
| 11.Jan | Thanos Petsos (M) | SK Rapid Wien | SV Werder Bremen | Confirmed | |
| 31.Aug | Robert Beric (F) | SK Rapid Wien | AS Saint Etienne | Confirmed | |
| 3.Jul | Terrence Boyd (F) | SK Rapid Wien | RB Leipzig | Confirmed | |
| 25.Jul | Atdhe Nuhiu (F) | SK Rapid Wien | Sheffield Wednesday | Confirmed | |
| 20.Sep | Ragnvald Soma (D) | SK Rapid Wien | FC Nordsjælland | Confirmed | |
| 29.Jan | Hannes Eder (D) | SK Rapid Wien | SønderjyskE | Confirmed |