| Fecha | Jugador | Llega a | Tipo | Precio |
|---|---|---|---|---|
| 1 jul 2023 | Kevin Schade | Brentford FC | Fichaje | €25.0M |
| 1 jul 2023 | Lucas Freitas | Associação Chapecoense de Futebol | Cesión | Préstamo / cesión |
| 1 jul 2023 | Jannes Horn | 1. FC Núremberg | Fichaje | Sin coste |
| 1 jul 2023 | Lawrence Vigouroux | Burnley FC | Fichaje | Sin coste |
| 1 jul 2023 | Matias Silva | CD Nacional U17 | Fichaje | — |
| 1 jul 2023 | Afonso Duarte | SC Braga U23 | Fichaje | — |
| 1 jul 2023 | Sebastian Esposito | Melbourne City FC | Fichaje | — |
| 30 jun 2023 | Wout Verlinden | Club Brugge II | - | - |
| 29 jun 2023 | Bryan Limbombe | Heracles | N/A | N/A |
| 29 jun 2023 | Pavel Behenský | Slavia Praha II | Cesión | Return from loan |
| 29 jun 2023 | Tobias Schützenauer | SCR Altach | Free | Free |
| 27 jun 2023 | Bo Hegland | Frigg Oslo FK | Fichaje | Sin coste |
| 27 jun 2023 | Kevin Duvan Castaño Gil | Cruz Azul | Free | Free |
| 26 jun 2023 | Suleiman Camara | Stade Lausanne-Ouchy | N/A | N/A |
| 26 jun 2023 | Pedro Bondo | Sporting CP B | Cesión | Loan |
| 24 jun 2023 | Samuel Adeniran | St. Louis City | N/A | N/A |
| 22 jun 2023 | Roland Galcik | Podbrezová | Free | Free |
| 22 jun 2023 | Moisés Vieira da Veiga | Cruz Azul | N/A | N/A |
| 21 jun 2023 | Andrés Alberto Andrade Cedeño | Lask Linz | N/A | N/A |
| 21 jun 2023 | Alexander Schlager | Red Bull Salzburg | Free | Free |
| 21 jun 2023 | Ezechiel Banzuzi | OH Leuven | Free | Free |
| 20 jun 2023 | David Tufekcic | SK Brann | Fichaje | Sin coste |
| 20 jun 2023 | Finn van Breemen | FC Basel 1893 | N/A | N/A |
| 19 jun 2023 | Ivan Mandić | Dinamo Zagreb | N/A | N/A |
| 16 jun 2023 | Sebastian Tounekti | Ranheim | Cesión | — |
| 15 jun 2023 | Fedde Leysen | Union St. Gilloise | Free | Free |
| 15 jun 2023 | Kevin Wimmer | Slovan Bratislava | Free | Free |
| 15 jun 2023 | Mohamed Salah | Club Brugge II | N/A | N/A |
| 15 jun 2023 | César Rodolfo Blackman Camarena | Slovan Bratislava | Free | Free |
| 14 jun 2023 | Jobe Bellingham | Sunderland AFC | € 1.8M | €1.8M |
| 13 jun 2023 | Youri Regeer | Twente | N/A | N/A |
| 13 jun 2023 | Souffian El Karouani | FC Utrecht | Free | Free |
| 13 jun 2023 | David Møller Wolfe | AZ Alkmaar | N/A | N/A |
| 4 jun 2023 | Simen Kvia-Egeskog | IL Hødd | Cesión | Préstamo / cesión |
| 3 jun 2023 | Simen Kvia-Egeskog | hodd | Cesión | Loan |
| 1 jun 2023 | Nathan Tella | Southampton FC | N/A | N/A |
| 1 jun 2023 | Terry Yegbe | SJK Seinäjoki | Fichaje | — |
| 1 jun 2023 | Stavros Gavriel | Apoel Nicosia | N/A | N/A |
| 1 jun 2023 | Diego Rodrigues | SC Braga B | Fichaje | — |
| 31 may 2023 | Dino Islamovic | Sin equipo | Fichaje | Sin coste |