| 2026-09-29 | Zyan Blake | Nottingham Forest → Truro City | Loan |
| 2026-09-16 | D. Osong | Nottingham Forest → Inverness CT | Free agent |
| 2026-09-06 | Cherif Yaya | Nottingham Forest → Ilkeston Town | Loan |
| 2026-08-31 | Morato | Nottingham Forest → West Ham | Loan |
| 2026-08-31 | Joshua Alan Powell | Nottingham Forest → Northampton | Loan |
| 2026-08-31 | Z. Abbott | Nottingham Forest → Southampton | Loan |
| 2026-08-30 | O. Hutchinson | Nottingham Forest → AC Mailand | Loan |
| 2026-08-30 | D. Muñoz | Crystal Palace → Nottingham Forest | Transfer |
| 2026-08-29 | Tyler Bindon | Nottingham Forest → Charlton | Loan |
| 2026-08-29 | D. Muñoz | Crystal Palace → Nottingham Forest | Transfer |
| 2026-08-26 | L. Delap | Chelsea → Nottingham Forest | Transfer |
| 2026-08-26 | L. Sillah | Nottingham Forest → Gillingham | Loan |
| 2026-08-25 | Eric Emanuel da Silva Moreira | Nottingham Forest → Excelsior | Loan |
| 2026-08-25 | D. Bakwa | Nottingham Forest → Lille | Loan |
| 2026-08-20 | O. Richards | Nottingham Forest → Aris Thessalonikis | Transfer |
| 2026-08-19 | O. Richards | Nottingham Forest → Aris Thessalonikis | Transfer |
| 2026-08-16 | T. Awoniyi | Nottingham Forest → Coventry | Transfer |
| 2026-08-15 | T. Awoniyi | Nottingham Forest → Coventry | Transfer |
| 2026-08-14 | S. Benda | Fulham → Nottingham Forest | Free agent |
| 2026-08-14 | O. Grainger | Nottingham Forest → Portstewart | Free agent |
| 2026-08-10 | O. Diomande | Sporting CP → Nottingham Forest | Transfer |
| 2026-08-10 | O. Diomande | Sporting CP → Nottingham Forest | Transfer |
| 2026-08-09 | O. Diomande | Sporting CP → Nottingham Forest | Transfer |
| 2026-08-02 | Kyle James McAdam | Nottingham Forest → Southend | Free agent |
| 2026-08-01 | Kyle James McAdam | Nottingham Forest → Southend | Free agent |
| 2026-07-29 | Gustavo Sá | Nottingham Forest → Olympiakos Piraeus | Loan |
| 2026-07-28 | S. Ortega | Nottingham Forest → Olympiakos Piraeus | Free agent |
| 2026-07-28 | Gustavo Sá | Famalicao → Nottingham Forest | Transfer |
| 2026-07-27 | Joseph Charles Gardner | Nottingham Forest → Falkirk | Transfer |
| 2026-07-26 | Joseph Charles Gardner | Nottingham Forest → Falkirk | Transfer |
| 2026-07-22 | X. Schlager | RB Leipzig → Nottingham Forest | Free agent |
| 2026-07-21 | X. Schlager | RB Leipzig → Nottingham Forest | Free agent |
| 2026-07-16 | D. Anisjko | Nottingham Forest → Chesterfield | Free agent |
| 2026-07-12 | A. Gunn | Nottingham Forest → San Jose Earthquakes | Free agent |
| 2026-07-08 | Jota Silva | Nottingham Forest → Olympiakos Piraeus | Loan |
| 2026-07-03 | B. Hammond | Nottingham Forest → Boston United | Free agent |
| 2026-06-30 | David Carmo | Nottingham Forest → Olympiakos Piraeus | Transfer |
| 2026-06-30 | E. Anderson | Nottingham Forest → Manchester City | Transfer |
| 2026-06-30 | Cormac Daly | Nottingham Forest → Heart Of Midlothian | Free agent |
| 2026-06-29 | D. Osong | Fleetwood Town → Nottingham Forest | Return from loan |
| 2026-06-29 | Joseph Charles Gardner | Mansfield Town → Nottingham Forest | Return from loan |
| 2026-06-29 | David Carmo | Oviedo → Nottingham Forest | Return from loan |
| 2026-06-29 | Jota Silva | Beşiktaş → Nottingham Forest | Return from loan |
| 2026-06-29 | O. Richards | Rio Ave → Nottingham Forest | Return from loan |
| 2026-06-29 | W. Boly | Nottingham Forest → Boly Willy | Free agent |
| 2026-06-29 | Tyler Bindon | Sheffield Utd → Nottingham Forest | Return from loan |
| 2026-06-29 | A. Gunn | Nottingham Forest → Gunn Angus | Free agent |
| 2026-06-29 | A. Gunn | Nottingham Forest → San Jose Earthquakes | Free agent |
| 2026-06-29 | Joshua Alan Powell | Fleetwood Town → Nottingham Forest | Return from loan |
| 2026-06-29 | A. Kalimuendo | Eintracht Frankfurt → Nottingham Forest | Return from loan |
| 2026-06-29 | L. Lucca | Nottingham Forest → Napoli | Return from loan |
| 2026-06-29 | S. Ortega | Nottingham Forest → Ortega Stefan | Free agent |
| 2026-06-29 | S. Ortega | Nottingham Forest → Olympiakos Piraeus | Free agent |
| 2026-06-29 | B. Hammond | Northampton → Nottingham Forest | Return from loan |
| 2026-06-29 | S. Benda | Fulham → Nottingham Forest | Free agent |
| 2026-06-29 | Kyle James McAdam | Northampton → Nottingham Forest | Return from loan |
| 2026-05-30 | Jack Ethan Thompson | Barrow → Nottingham Forest | Return from loan |
| 2026-05-30 | Cherif Yaya | Hereford → Nottingham Forest | Return from loan |
| 2026-05-30 | Cormac Daly | Hereford → Nottingham Forest | Return from loan |
| 2026-04-10 | W. Thompson | Nottingham Forest → Stoke City (U21) | - |
| 2026-02-04 | Cuiabano | Nottingham Forest → Vasco | Loan |
| 2026-02-04 | Cuiabano | Nottingham Forest → Vasco DA Gama | Loan |
| 2026-02-01 | D. Osong | Nottingham Forest → Fleetwood | Loan |
| 2026-02-01 | D. Osong | Nottingham Forest → Fleetwood Town | Loan |
| 2026-02-01 | L. Netz | B. Monchengladbach → Nottingham Forest | Transfer |
| 2026-02-01 | L. Netz | Borussia Mönchengladbach → Nottingham Forest | Transfer |
| 2026-02-01 | S. Ortega | Manchester City → Nottingham Forest | Transfer |
| 2026-02-01 | B. Hammond | Nottingham Forest → Northampton | Loan |
| 2026-01-30 | O. Zinchenko | Nottingham Forest → Arsenal | Return from loan |
| 2026-01-29 | Jack Ethan Thompson | Nottingham Forest → Barrow | Loan |
| 2026-01-27 | Cherif Yaya | Nottingham Forest → Hereford | Loan |
| 2026-01-27 | Cormac Daly | Nottingham Forest → Hereford | Loan |
| 2026-01-26 | Douglas Luiz | Nottingham Forest → Juventus | Return from loan |
| 2026-01-25 | A. Berry | Nottingham Forest → Al Kholood | Transfer |
| 2026-01-22 | L. Lucca | Napoli → Nottingham Forest | Loan |
| 2026-01-21 | E. Dennis | Nottingham Forest → Brondby | Free agent |
| 2026-01-17 | D. Osong | Motherwell → Nottingham Forest | Return from loan |
| 2026-01-17 | Jamie Carson McDonnell | Nottingham Forest → Oxford United | Transfer |
| 2026-01-16 | Jamie Carson McDonnell | Mansfield → Nottingham Forest | Return from loan |
| 2026-01-16 | Jamie Carson McDonnell | Nottingham Forest → Oxford Utd | Transfer |
| 2026-01-16 | Jamie Carson McDonnell | Mansfield Town → Nottingham Forest | Return from loan |
| 2026-01-14 | Joshua Alan Powell | Nottingham Forest → Fleetwood | Loan |
| 2026-01-14 | Joshua Alan Powell | Nottingham Forest → Fleetwood Town | Loan |
| 2026-01-13 | Eric Emanuel da Silva Moreira | Rio Ave → Nottingham Forest | Return from loan |
| 2026-01-08 | A. Konaté | Nottingham Forest → Radnik Bijeljina | Free agent |
| 2026-01-06 | A. Kalimuendo | Nottingham Forest → Eintracht Frankfurt | Loan |
| 2026-01-01 | Joshua Alan Powell | Colchester → Nottingham Forest | Return from loan |