| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Dean Brill | 1985-02-10 | 188 | 79 | |||
| D | Kevin Foley | 1984-11-01 | 183 | 77 | |||
| D | Leon Barnett | 1985-11-30 | 185 | 71 | 2016 jun | ||
| M | Markus Heikkinen | 1978-10-13 | 185 | 84 | 2018-12-31 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 2.Aug | Jake Gray (M) | Crystal Palace | Luton Town | Confirmed | |
| 30.Jun | Glen Rea (D) | Luton Town | Brighton & Hove Albion | Confirmed | |
| 18.Mar | Glen Rea (D) | Brighton & Hove Albion | Luton Town | Confirmed | |
| 28.Jan | Jernade Meade (D) | Swansea City | Luton Town | Confirmed | |
| 2.Jan | Will Antwi (D) | Luton Town | Free Agent | Confirmed | |
| 1.Jan | Matthew Barnes Homer (F) | Rochdale AFC | Luton Town | Confirmed | |
| 24.Nov | Charlie Henry (M) | Luton Town | Aldershot Town | Confirmed | |
| 25.Mar | Cauley Woodrow (M) | Luton Town | Fulham FC | Confirmed | |
| 31.Jan | Andrew Drury (M) | Luton Town | Ipswich Town | Confirmed | |
| 28.Sep | Adam Murray (M) | Luton Town | Mansfield Town | Confirmed |